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    For Democrats Pining for an Alternative, Biden Team Has a Message: Get Over It

    When it comes down to it, a lot of Democrats wish President Biden were not running this fall. Only 28 percent of Democrats in a new survey by The New York Times and Siena College expressed enthusiasm about his candidacy and 38 percent said flatly that Mr. Biden should not be their nominee.But even as many Democrats both in Washington and around the country quietly pine for someone else to take on former President Donald J. Trump, who leads nationwide in the poll by 5 percentage points, no one who matters seems willing to tell that to Mr. Biden himself. Or if they are, he does not appear to be listening.Surrounded by a loyal and devoted inner circle, Mr. Biden has given no indication that he would consider stepping aside to let someone else lead the party. Indeed, he and the people close to him bristle at the notion. For all the hand-wringing, the president’s advisers note, no serious challenge has emerged and Mr. Biden has dominated the early Democratic primaries even more decisively than Mr. Trump has won his own party’s nominating contests.The Biden team views the very question as absurd. The president in their view has an impressive record of accomplishment to run on. There is no obvious alternative. It is far too late in the cycle to bow out without considerable disruption. If he were ever to have opted against a second term, it would have been a year ago when there would have been time for a successor to emerge. And other than someone with Biden in their name, it is hard to imagine who would have enough influence to even broach the idea with him, much less sway him.“There is no council of elders and I’m not sure if there was that an incumbent president, no matter who it was, would listen to them,” said David Plouffe, the architect of President Barack Obama’s campaigns and one of the strategists who helped him pick Mr. Biden as his vice-presidential running mate in 2008. “He thinks, ‘Hey, I won and I beat the guy who’s going to run against me and I can do it again.’”Members of Mr. Biden’s team insist they feel little sense of concern. The president’s closest aides push back in exasperation against those questioning his decision to run again and dismiss polls as meaningless this far before the vote. They argue that doubters constantly underestimate Mr. Biden and that Democrats have won or outperformed expectations in 2018, 2020, 2022, 2023 and even a special House election this year.We are having trouble retrieving the article content.Please enable JavaScript in your browser settings.Thank you for your patience while we verify access. If you are in Reader mode please exit and log into your Times account, or subscribe for all of The Times.Thank you for your patience while we verify access.Already a subscriber? Log in.Want all of The Times? Subscribe. More

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    Biden and Democratic Allies Announce $97 Million Fund-Raising Haul

    President Biden’s re-election campaign said on Monday that, along with two allied committees, it had pulled in $97 million during the most recent fund-raising period. Together, they entered 2024 with more than $117 million in cash on hand, the campaign said.The Biden operation’s $97 million haul is significant, but its cash on hand number is just $27 million more than it had at the end of September, a function of the campaign’s significant spending on new personnel and more than $25 million in advertising it bought in general-election battlegrounds, where Mr. Biden’s poll numbers have been weak.The Biden campaign released its fund-raising data more than two weeks before it was required to do so, a clear attempt to distract attention from the Iowa caucuses on Monday, the first nominating contest for the Republican presidential candidates aiming to oust Mr. Biden from the White House.“The Team Biden-Harris coalition knows the stakes of this election and is ready to win this November,” said Julie Chávez Rodríguez, Mr. Biden’s campaign manager. “These numbers prove that the American people know the stakes and are taking action early to help defeat the extreme MAGA Republican agenda again.”Former President Donald J. Trump, who has a large lead in polls of the Republican race and is widely expected to win in Iowa, has not yet released his year-end fund-raising numbers. The Trump campaign had $37.5 million in cash on hand at the end of September, the last time filings were reported, and Mr. Biden’s campaign had $32.2 million.In January 2020, Mr. Trump’s re-election campaign committee alone had $102.8 million on hand — a function of a cash bonanza that followed his first impeachment.Of the other top Republican candidates, only former Gov. Nikki Haley of South Carolina has revealed her end-of-year fund-raising totals. This month, she announced she had raised $24 million in the fourth quarter for her campaign and its two associated committees. The campaign said it had $14.5 million in cash to begin the new year.The Biden campaign offered few useful details about the money it has raised. The campaign pointed to 520,000 individual donors during the three-month period that ended Dec. 31, but did not reveal how much of its money came from donors who gave less than $200, the typical measuring stick for grass-roots enthusiasm.Small-dollar donors are vital to a campaign’s health because they can be tapped for repeated contributions, and they are a sign of grass-roots engagement with a candidate.It is not clear yet how much of the cash raised by the Biden operation is in the campaign account that can accept contributions of $6,600 per person or other accounts to which donors can give nearly $1 million. How the money is divided won’t be known until Jan. 31, when all of the federal campaign committees are required to file fund-raising reports with the Federal Election Commission. More

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    Annoyed at Biden, New Hampshire Democrats Aim to Help His Presidential Campaign

    Despite being bumped down the presidential calendar, Democrats in the state are planning a write-in campaign for the president, who won’t be on New Hampshire primary ballots.New Hampshire Democrats were furious at President Biden when he shook up the party’s nominating calendar last year, diminishing their state’s political importance by pushing its primary election behind South Carolina’s.Kicking and screaming, they defied the Democratic National Committee and refused to move back their primary. This year, they warned that the upheaval could come back to haunt Mr. Biden and cause him an embarrassing loss in the state’s primary.In turn, the national party stripped the state of its delegates. Mr. Biden declined to campaign in New Hampshire or even place his name on the ballot.Now a range of the state’s influential Democrats, including Senator Jeanne Shaheen, are coming around to the idea that they need to swallow their pride and help Mr. Biden win their primary despite his snub of their state.“It’s up to us in New Hampshire to fix a problem that his advisers and the D.N.C. made for the president,” said Kathleen Sullivan, a former New Hampshire Democratic Party chairwoman who is leading a write-in Biden super PAC.Ms. Sullivan’s super PAC is one of two groups of Democrats in the state organizing campaigns to promote Mr. Biden as a write-in candidate in the Jan. 23 primary election.For the Biden-backing Granite Staters, the write-in efforts amount to a bit of a tail-between-their-legs moment after months of howling objections about the president’s decision. Like Ms. Sullivan, they find themselves blaming the D.N.C. or Mr. Biden’s aides rather than a president whom they still support.Their goal is a substantial Biden victory over the two Democrats running protest campaigns against the president, Representative Dean Phillips of Minnesota and the self-help author Marianne Williamson. Both of them, unlike Mr. Biden, will appear on Democratic ballots in the state.“People here, quite frankly, don’t care about the D.N.C. or their rules,” said Terie Norelli, a former speaker of the New Hampshire State House and a leader of Granite State Write-In, a grass-roots group supporting Mr. Biden. “The vast majority of Democrats and independents in New Hampshire do support President Biden.”The group hopes to use its modest budget — $50,000 to $70,000 — to inform New Hampshire Democrats and independents, who are allowed to cast ballots in the state’s primary elections, about how to vote for the president in a contest in which he is not participating.Beyond obvious details, like making sure voters know that his name is spelled B-i-d-e-n and that they have to check a write-in box on the ballot, the group is recruiting a team of volunteers. They will partake in the small-town New Hampshire experience of standing outside voting sites and holding signs urging voters to write in Mr. Biden’s name.The group also plans to have its members write letters and place opinion essays in New Hampshire newspapers and appear at town Democratic club meetings before the primary.Ms. Norelli said she was not worried that Mr. Biden would lose to Mr. Phillips or Ms. Williamson. The aim, she said, is to give his campaign — with which her group is not coordinating — momentum to defeat former President Donald J. Trump in the general election, assuming he is the Republican nominee.“It’s not like it’s a big, contested race,” she said.This month, the group distributed stickers at a New Hampshire Democratic Party fund-raising dinner where, in a public-relations triumph for the effort, Ms. Shaheen, the state’s senior senator, expressed her support.“Let’s kick off 2024 by writing in Biden and making our first-in-the-nation primary the very first victory for the Biden-Harris re-election team,” Ms. Shaheen said at the dinner.Representative Ro Khanna of California, who is widely seen as having presidential ambitions of his own and has publicly lamented Democrats’ decision to place New Hampshire after South Carolina on the nominating calendar, dialed into one of the group’s video conferences, which Ms. Norelli said were held every two weeks and usually attracted about 85 people.A Biden campaign spokesman declined to comment.Florida’s Democratic Party has already canceled its presidential primary. Democratic officials in other states have moved to list only Mr. Biden on their ballot, which has led to complaints from Mr. Phillips and Ms. Williamson.Ms. Sullivan said that by all but ignoring the New Hampshire primary, Mr. Biden ran the danger of allowing the challenges from Mr. Phillips and Ms. Williamson to become competitive. She pointed to 1976, 1980 and 1992, when incumbent presidents lost re-election, and to 1968, when President Lyndon B. Johnson was driven out of the race. In all of those years, the presidents faced tough primary opponents in New Hampshire.“I don’t think it would be good for him if he does poorly in New Hampshire,” Ms. Sullivan said of Mr. Biden.Ray Buckley, the chairman of the New Hampshire Democratic Party since 2007, said Mr. Biden retained support from a vast majority of the state’s Democrats, but cautioned that a significant percentage would be likely to vote against him.“About one-third of New Hampshire Democratic primary voters are cranky people who always want to be contrary,” said Mr. Buckley, who added that he had not communicated with the write-in groups. “Anyone who is not the main person starts off with a third of the vote.”Mr. Buckley himself plans to stay neutral — sort of.“Ever since I became state party chair, I have consistently written in Jimmy Carter,” Mr. Buckley said. “Maybe this time I’ll write in Rosalynn to honor her. That’s really the choice for me.”Lou D’Allesandro, a New Hampshire state senator who has known Mr. Biden for decades, said he would reluctantly write the president’s name on the ballot despite lingering anger about how the Granite State had been treated.“People felt slighted,” he said. “But what he’s done for the country overrides that decision.”Mr. D’Allesandro said he saw Mr. Biden last week at a Boston fund-raiser where the musician James Taylor played a concert. Mr. D’Allesandro said that he had embraced Mr. Biden, and that the president had invited him to the White House.But Mr. D’Allesandro didn’t bring up his grievances about New Hampshire’s primary.“It wasn’t the time or the place to do that,” he said. More

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    Could a Democrat Really Challenge Biden at This Point? Here’s What to Know.

    It’s really hard to run against a sitting president. And beginning at this point, just two months before primary voting starts, wouldn’t be feasible anyhow.The Democratic anxiety that has swirled around President Biden for over a year has kicked into overdrive in recent weeks, as his approval ratings have stayed stubbornly low and polls have shown the possibility of his losing to former President Donald J. Trump.That anxiety has crystallized into one question, repeated like a drumbeat: Can’t some big-name Democrat challenge him? Someone more prominent than Marianne Williamson or Dean Phillips?The answer: In theory, sure. In practice, the prospects are remote.There are several reasons for that, most of which boil down to it being really hard to run a successful primary campaign against a sitting president. And doing so at this point, just two months before voting starts, wouldn’t be feasible anyhow.Making things still more difficult for a would-be challenger is that Mr. Biden remains relatively popular among Democratic voters. According to a recent New York Times/Siena College poll, 79 percent of party voters in six battleground states somewhat or strongly approve of his performance, which doesn’t leave a lot of room for another Democrat.“Logistically, it’s impossible,” said Tim Hogan, a Democratic strategist who has worked for Hillary Clinton and Amy Klobuchar. “Politically, it’s a suicide mission.”Ballot deadlines are approaching, or pastTo appear on each state’s primary ballot, candidates must submit paperwork along with, in many cases, a hefty filing fee and hundreds or even thousands of voter signatures.The deadlines for those submissions have already passed in South Carolina and Nevada, the first two states on the Democratic calendar; in New Hampshire, which is holding an unsanctioned primary in January; and in Alabama and Arkansas.Michigan, another early-voting state, released its list of candidates this month. By mid-December, the window to get added to the ballot there will have closed. The deadline is similar for California, which will account for more delegates than any other state; and for Arizona, Colorado, Louisiana, Maine, North Carolina, Oklahoma, Tennessee, Texas, Vermont and Virginia.So even if a candidate entered the race tomorrow, they would be unable to get on the ballot in the first two primaries, and probably in a lot of others. It would be a tall order, for instance, to secure 26,000 signatures in California by its Dec. 15 deadline.Pretty soon, defeating Mr. Biden goes from difficult to mathematically impossible.Biden has an enormous financial advantageMr. Biden’s re-election campaign, the Democratic National Committee and a joint fund-raising committee said they raised a combined $71.3 million in the third quarter of this year. They reported having $90.5 million in cash on hand as of the end of September.That would put any new candidate at a staggering disadvantage. Consider that on the Republican side, Mr. Trump alone announced a $45.5 million haul in the third quarter, and his leading rivals, Gov. Ron DeSantis of Florida and the former United Nations ambassador Nikki Haley, reported raising $15 million and $11 million.Big-name politicians are thinking long termMany voters looking for a savior candidate are, naturally, looking to people seen as rising stars in the Democratic Party — like Gov. Gavin Newsom of California, Gov. Gretchen Whitmer of Michigan or Gov. J.B. Pritzker of Illinois.But rising stars generally want to maximize their chances at the right time.“Ambitious candidates are risk-averse,” said Casey Dominguez, a professor of political science and international relations at the University of San Diego who studies primaries. “They don’t want to ruin their chances at a successful run for president by having an unsuccessful run for president, particularly one where you’re running against a sitting president, potentially dividing the party.”Crucially, there is no precedent in the last 50 years for candidates to look to for a path.Pat Buchanan, challenging an unpopular President George Bush in 1992, gave Mr. Bush an unexpectedly close call in New Hampshire but did not end up winning a single primary. Edward M. Kennedy, challenging an unpopular President Jimmy Carter in 1980, won 12 states and contested the nomination all the way to the Democratic convention, but did not come close to a majority.“History tells a story,” said Barbara Norrander, an emeritus professor at the University of Arizona’s School of Government and Public Policy who studies presidential primaries. “Ted Kennedy versus Jimmy Carter 1980 is what you would look back at, and Kennedy had a lot of pluses going for him, but he wasn’t able to unseat Carter. So it’s highly unlikely that someone today could unseat an incumbent president.”Democrats are worried about weakening BidenThe driving force behind many Democrats’ desire to jettison Mr. Biden is fear of another Trump presidency. But the same driving force is behind other Democrats’ desire to stick with him.Mr. Biden’s vulnerabilities, including his age and low approval ratings, are very real. But the electoral advantages of incumbency, universal name recognition and an established campaign organization are real, too.At this point, for a new candidate, “there’s just no way to build momentum and get the resources necessary,” Mr. Hogan said.Potential challengers also have to weigh the possibility that a primary battle could weaken Mr. Biden in the general election, even if he overcame it. Though there is no consensus, some historians believe primary challenges hurt Mr. Bush and Mr. Carter in 1992 and 1980.“Nobody wants to be the person that divided the party and helped to elect Donald Trump,” Professor Dominguez said.There is no ‘generic Democrat’Any challenger would come with their own weak points that would turn off one Democratic faction or another and be exploited by Republicans over the long months of a general-election campaign — a reality not necessarily captured by polls that show an unnamed Democratic candidate performing better than Mr. Biden.“You can’t run a generic Democrat,” Mr. Hogan said. “You have to run a person.”Take Representative Dean Phillips of Minnesota, who entered the race in October. After debuting around 7.5 percent in the FiveThirtyEight polling average, he quickly fell to about 4 percent.That reality played out in 1968, the only time in modern history that an incumbent president was successfully challenged in his party’s primary.Two challengers with substantial name recognition and support — Eugene McCarthy and Robert F. Kennedy — helped drive President Lyndon B. Johnson not to seek re-election. He announced his decision in March 1968, as the primaries were underway. That August, his vice president, Hubert Humphrey, won the nomination of an agonizingly divided Democratic Party.Humphrey lost the general election with 191 electoral votes to Richard Nixon’s 301.What happens if Biden can’t run?To state the obvious, all of the considerations are what they are because Mr. Biden is running. If something were to change that — if he had a health crisis, for example — the party would be in a difficult situation.If he withdrew just before or early in the primary season, voters would be limited to the other options already in the race. It is highly unlikely that ballot access deadlines, which are set by individual states and not by national party officials, would be reopened.If he withdrew later in the primary season — after he had won enough delegates in early primaries that no candidate could surpass him — the nomination would be decided on the floor of the Democratic National Convention in August, where delegates have the final say in choosing a nominee. That would also be the case if he withdrew between the primaries and the convention. More

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    The New Hampshire Primary Will Be Jan. 23

    The date, announced by state officials, defies the Democratic National Committee’s decision to have South Carolina vote first.New Hampshire’s presidential primary will be held Jan. 23, state officials announced on Wednesday.The date had been in contention since the Democratic National Committee decided earlier this year to change its nominating calendar, which had long given New Hampshire the first primary slot after the Iowa caucuses. The new Democratic calendar puts South Carolina first, followed by New Hampshire and Nevada together on one day, then Georgia, then Michigan.But New Hampshire officials have made clear that they will refuse to abide by the D.N.C.’s decision. The state has a law requiring it to hold the first-in-the-nation primary, and additionally, the Republican Party still has the state in its traditional position in the early lineup of Iowa first, New Hampshire second, and then South Carolina and Nevada.“We will be holding our primary first,” Ray Buckley, the chairman of the New Hampshire Democratic Party, said last year after initial reports that the D.N.C. intended to change the schedule.In a statement after the date was announced, Mr. Buckley said, “For more than 100 years, presidential candidates of both parties have come to the Granite State time and again because, no matter who they are, where they come from, or how much money they have, they know they will get a fair shot from Granite Staters.”New Hampshire’s secretary of state has the authority to set its primary date, and the state law says its presidential primary must be held on either the second Tuesday in March or “seven days or more immediately preceding the date on which any other state shall hold a similar election, whichever is earlier.” The secretary of state, David Scanlan, is a Republican and had previously indicated that he intended to follow that law.Because New Hampshire is violating the D.N.C.’s edict, President Biden did not put his name on the ballot there. Some of his supporters are running a write-in campaign on his behalf, but it is not officially sanctioned. Party leaders could also penalize the state by refusing to count its delegates at the Democratic convention. More

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    Dean Phillips Will Run Against Biden

    The Minnesota lawmaker is undertaking a long-shot bid against an incumbent president who has significant financial advantages.Representative Dean Phillips, a moderate Minnesota Democrat who has for months publicly argued that President Biden should not run for re-election, announced his candidacy for president on Thursday, setting up an underdog challenge for the Democratic nomination.In an interview with CBS News, Mr. Phillips — who plans to officially launch his campaign on Friday in New Hampshire — argued that finding an alternative to Mr. Biden was essential because of polling showing the president at risk of losing to former President Donald J. Trump.“I will not sit still and not be quiet in the face of numbers that are so clearly saying that we’re going to be facing an emergency next November,” he said. Late Thursday evening, he posted his campaign announcement on X, the site formerly known as Twitter, saying, “It’s time to put our country back together again.”Mr. Phillips, a third-term congressman who represents a district that includes suburban Minneapolis, enters the race with long-shot odds.The Democratic establishment and major donors have already lined up behind Mr. Biden, who raised $71.3 million with the Democratic National Committee and his joint fund-raising committee during the three-month reporting period that ended Sept. 30.Mr. Phillips will also need to work fast to get his name on the ballot in several early-voting states. Already, he has missed the deadline to appear on the ballot in Nevada, the second nominating state on a new presidential primary calendar approved by the national committee this year.Mr. Phillips, 54, has for months stressed his belief that Mr. Biden, 80, should face a serious primary challenge, citing the president’s age and low approval ratings as evidence that Democrats are eager for a new generation of candidates. (Several Republican candidates have made similar arguments in their bids against former President Donald J. Trump, who is 77.)An heir to a Minnesota liquor company who also ran the gelato company Talenti, Mr. Phillips was first elected in 2018, as part of a wave of Democrats who flipped Republican-held suburban districts in a backlash to Mr. Trump. He stepped down from a position in Democratic leadership in the House this month as he weighed joining the presidential race.Mr. Phillips will join two other primary challengers to the president: Marianne Williamson, the self-help author who unsuccessfully ran against Mr. Biden in 2020, and Cenk Uygur, the co-creator and co-host of the progressive talk show “The Young Turks.”Another candidate, Robert F. Kennedy Jr., had initially planned to compete for the Democratic nomination but announced this month that he would instead run for president as an independent candidate. More

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    Biden Campaign Raises $71.3 Million in Third Quarter Alongside D.N.C.

    The president’s re-election campaign announced a substantial quarterly fund-raising haul, but it’s far short of what Donald J. Trump raised in the same quarter of his 2020 re-election campaign.President Biden’s re-election campaign announced on Sunday it had raised a combined $71.3 million alongside the Democratic National Committee and a joint fund-raising committee during the three-month period that ended in September, a haul that eclipses what his Republican rivals have amassed but falls short of where President Donald J. Trump was at this point four years ago.The campaign said the three fund-raising vehicles had a combined $90.5 million in cash on hand. It did not disclose how the cash was divided between the three fund-raising vehicles.“It was a spectacular quarter,” said Jeffrey Katzenberg, the Hollywood mogul whom Mr. Biden named a co-chairman of his campaign, said in an interview Saturday. “It certainly exceeded our own expectations around it significantly. The fact that we’re sitting with $91 million in the bank today is really an extraordinary advantage.”But Mr. Biden’s fund-raising haul is well short of the $125 million Mr. Trump and the Republican National Committee raised during the same period of his 2020 re-election campaign. And it is just a touch more than the $70.1 million President Obama and the D.N.C. raised at this point in his 2012 campaign — at a time when individual contribution limits were far lower than they are today.Mr. Katzenberg, in the interview, dismissed comparisons to such campaigns as “comparing apples to submarines.”Comparisons with Mr. Obama’s fund-raising efforts for the 2012 campaign are indeed imprecise, because a 2014 Supreme Court decision and other legal changes now allow candidates and parties to form joint fund-raising committees that can accept single donations of nearly $1 million. In 2012, Mr. Obama and the D.N.C. could collect only $30,500 per person.More revealing details about the Biden campaign’s financial status will emerge when the committees file quarterly reports required by the Federal Election Commission. Those are due by the end of Sunday; a campaign official said the reports would become public late Sunday evening.Among the most significant details in the campaign’s fund-raising report will be the amount of cash it has accumulated from donors who gave less than $200.These so-called small donors are vital to presidential efforts because they can be recruited to give again and again over the course of a long campaign. During the three-month fund-raising period that ended in June, $10.2 million of contributions to the Biden effort, or about 21 percent, came from small donors, an amount smaller in percentage and in real dollars than the Trump and Obama campaigns in the comparable time periods.While the Biden campaign has not disclosed how much of its haul came from small donors, an official, who requested anonymity because they were not authorized to speak for the campaign, did reveal that 49 percent of its $71.3 million came from donors who gave through the internet or mail programs. The campaign had expected that about 36 to 37 percent of third-quarter fund-raising would come online or through the mail.Mr. Biden’s fund-raising total far outpaces what his Republican rivals have reported for the third quarter.Mr. Trump’s campaign reported it raised $45.5 million, with $37.5 million in cash on hand. Gov. Ron DeSantis of Florida raised $15 million. Nikki Haley, the former governor of South Carolina, raised $11 million. Aides to Senator Tim Scott of South Carolina revealed to Republican donors this week that his campaign began October with $11.6 million in cash on hand, more than either Mr. DeSantis or Ms. Haley.The Biden campaign trumpeted an array of fund-raising figures that officials said proved that there was indeed enthusiasm for their candidate, even as polls show that Mr. Biden is unpopular and suggest that he has not engendered enthusiasm within his own party.The campaign said that it attracted 240,000 donors who had contributed to the campaign in 2020 and that 97 percent of contributions were less than $200. A contest for a chance to meet both Mr. Biden and Mr. Obama raised “nearly $2.5 million,” according to the campaign, while the sales of mugs with a picture of Mr. Biden’s face with the “Dark Brandon” meme brought in “close to $2 million” in August and September. More

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    Robert F. Kennedy Jr. to Run for President as Independent, Leaving Democratic Primary

    The political scion told supporters he would end his campaign as a Democratic candidate and run as an independent, potentially upsetting the dynamics of the 2024 election.In a move that could alter the dynamics of the 2024 election, Robert F. Kennedy Jr. said on Monday that he would continue his presidential run as an independent candidate, ending his long-shot pursuit of the Democratic nomination against an incumbent president.Speaking to a crowd of supporters outside the National Constitution Center in Philadelphia, Mr. Kennedy, a leading vaccine skeptic and purveyor of conspiracy theories, said he represented “a populist movement that defies left-right division.”“The Democrats are frightened that I’m going to spoil the election for President Biden, and the Republicans are frightened that I’m going to spoil it for Trump,” he said. “The truth is, they’re both right. My intention is to spoil it for both of them.”Since announcing his candidacy in April, Mr. Kennedy, 69, has been a sharp critic of Democratic leadership, which he has accused of “hijacking the party machinery” to stifle his challenge to Mr. Biden. He has also said, in interviews and in public appearances, that the party has abandoned its principles and become corrupted.Running as an independent will entail an expensive, uphill battle to get on the ballot in all 50 states. Last week, Cornel West, a liberal academic and presidential candidate, said he would run as an independent, abandoning his efforts to secure the Green Party’s nomination.In a 45-minute speech on Monday, Mr. Kennedy described encounters across America with people he called the “ranks of the dispossessed,” interspersed with angry barbs about “the surveillance state” and the “tyranny of corruption.” He quoted the Old Testament, John Adams, Martin Luther King Jr., Tennyson and his own father.But Mr. Kennedy, the scion of a liberal political dynasty, has alienated his own family members and many Democrats with his promotion of conspiracy theories, his rejection of scientific orthodoxies and his embrace of far-right political figures.“Bobby might share the same name as our father, but he does not share the same values, vision or judgment,” four of Mr. Kennedy’s siblings — Rory Kennedy, Kerry Kennedy, Joseph P. Kennedy II and Kathleen Kennedy Townsend — said in a statement on Monday. “We denounce his candidacy and believe it to be perilous for our country.”Mr. Kennedy, an environmental lawyer, has been lionized by a movement that has expanded beyond anti-vaccine sentiments, including opposition to the mandatory vaccination of children, to push back more broadly against state public health measures. In recent years, his open suspicions about the government’s handling of the coronavirus and his criticism of lockdowns and vaccine policies gave him a new platform and earned him popularity among many Americans who had wearied of the pandemic.“Our campaign has ignited a movement that has been smoldering for years,” Mr. Kennedy said.To roars of applause, Mr. Kennedy told his supporters they were “declaring independence” from a lengthy list of perceived adversaries: “Wall Street, Big Tech, Big Pharma”; the “military industrial complex”; “the mercenary media”; “the cynical elites”; both of the major political parties and “the entire rigged system.”He has built a base of support made up of disaffected voters across the political spectrum, but some Democrats have worried that he poses the biggest threat to their party, fearing that any independent or third-party candidacy could peel off voters from Mr. Biden.Shortly after Mr. Kennedy entered the race, some polls showed him with up to 20 percent of Democratic support — which was in large part a measure of the desire among some for an alternative to Mr. Biden. Mr. Kennedy’s numbers have sagged in recent months, though his campaign, which dwells as much on nostalgia for his political lineage as it does on skepticism about the scientific and political establishment — continues to appeal to a particular cross-section of skeptical Democrats, political conservatives and independents.The Republican National Committee, in a reflection of its own concerns about Mr. Kennedy, sent out an email on Monday titled “23 Reasons to Oppose RFK Jr.,” listing ways in which he has been aligned with Democrats in the past, including his record of opposing fossil fuel extraction.Monday’s event drew supporters from across the political spectrum.Sean Gleason, a retired state police officer from New Jersey, said he was a registered Republican and a two-time Trump voter who planned to leave the party and vote for Mr. Kennedy. “I’m done with the duopoly,” Mr. Gleason said. He is supporting Mr. Kennedy, he said, because “I think he’s telling the truth, even the truth people don’t really want to hear.”Michael Schroth, a 69-year-old former teacher from Haverhill, Mass., said he was an undeclared voter who had previously voted for Ralph Nader, Barack Obama and Jill Stein. He has been a fan of Mr. Kennedy’s since he heard him speak two years ago. “He is intelligent,” he said. “He thinks through problems.”Rebecca Briggs, 60, a health coach and nutritionist from Rhode Island, said she was a registered Democrat and had voted for Mr. Biden in 2020, “because I didn’t want Trump — but I actually didn’t want either of them.” She said she was ready to leave the party with Mr. Kennedy.“I was afraid to tell people — afraid of the reaction,” she said of supporting him. “I have to move forward with courage.”Mr. Kennedy has raised two main complaints about the Democratic National Committee, which is supporting Mr. Biden’s re-election effort. First, he said, Mr. Biden and the party pushed to change the first primary state from New Hampshire — where Mr. Kennedy, who has New England roots, enjoys a base of support — to South Carolina, the state that rescued Mr. Biden’s primary campaign in 2020.Second, the party has refused to arrange for debates between Mr. Biden and Mr. Kennedy. Mr. Biden’s campaign and the D.N.C. have also essentially refused to acknowledge Mr. Kennedy’s candidacy and have avoided saying his name.Mr. Kennedy had teased Monday’s announcement in a video last week, though his campaign held off on confirming that he was changing parties. But in the hours before he went onstage in Philadelphia, there was a subtle change on Mr. Kennedy’s campaign website. Where it had once read “I am a Kennedy Democrat,” with the family name in italics, it was changed to: “I am a Kennedy American.” More