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    Should Joe Manchin Run for President?

    In the emotional life of the liberal mediasphere, there was so little space between the release of the New York Times/Siena poll showing President Biden losing to Donald Trump handily across a range of swing states (doom! doom!) and the Democratic overperformance in Tuesday’s elections (sweet relief!) that one of the striking features of the polling passed with relatively little comment.This was the remarkably strong showing for Robert F. Kennedy Jr.’s independent candidacy. When added to the swing-state polls, Kennedy claimed 24 percent of registered voters against 35 percent for Trump and 33 percent for Biden.That number is notable along two dimensions. First, for showing Kennedy drawing close to equally from both likely nominees rather than obviously spoiling the race for one or the other. Second, for its sheer Ross Perotian magnitude, its striking-distance closeness to the major party candidates.Yet I don’t see a lot of people entertaining the “Kennedy wins!” scenario just yet, and for good reasons: Most notable third-party candidates eventually diminish, he may be artificially inflated by his famous name, and his crankishness is so overt (whereas Perot’s was gradually revealed) that many voters currently supporting him in protest of a Biden-Trump rematch may well abandon him after a light Googling.The world being strange, we shouldn’t take this conventional wisdom as gospel. But if we assume that Kennedy’s 24 percent is mostly about people seeking a third option rather than explicitly supporting his worldview, the immediate question is whether someone else should try to fill that space.Someone like, say, Joe Manchin, the West Virginia senator who spiced up his announcement bowing out of a re-election bid with some talk about “traveling the country” for a movement to “mobilize the middle.”There is already a potential vehicle for a Manchin candidacy in the No Labels movement, along with an effort to draft Manchin and Mitt Romney to run together, with Romney at the top of the ticket.But the ideal ticket would probably lead with Manchin. For an independent run, his branding as a moderate with strong ideological differences with the left seems stronger than Romney’s branding as a conservative with strong moral differences with Trump.When elites pine for a third-party candidate, they usually imagine someone like Michael Bloomberg, a fiscal conservative and social liberal. But the sweet spot for a third-party candidate has always been slightly left of center on economics and moderate to conservative on cultural issues — and that describes Manchin better than it does most American politicians. (It arguably described Biden once but not as he’s evolved in the past decade.)The West Virginian could run, authentically, as an unwoke supporter of universal health care, fiscal restraint and a middle ground on guns and abortion. That’s a better basis for a run than Bloombergism or Kennedy’s courtship of the fringes, with a chance of claiming votes from Never Trumpers and the center left.But is it worth the effort? Stipulate that Kennedy will remain in the race and hold on to some share of the vote that might otherwise be available to a third-party moderate. Then the question becomes whether both Trump and Biden could fall below their 35 and 33 percent levels in the Times/Siena poll, giving Manchin a plurality of the popular vote and a chance at an Electoral College win (because merely deadlocking the Electoral College would just send the race to the House, where — pending the results in 2024 — Trump would probably prevail).In a polarized landscape, that kind of mutual G.O.P. and Democratic collapse seems unlikely. But if you were drawing up a scenario for it to happen, it might resemble the one we’re facing — in which one candidate seems manifestly too old for the job and the other might be tried and convicted before the general election. Such a landscape seems as if it should summon forth a responsible alternative. Confronting the American people with a Trump-Biden-Kennedy choice would be a remarkable dereliction by our political elites.But comes the response from anxious liberals: Isn’t an even greater dereliction for a Democrat — however ornery and moderate — to embark on a run that could help re-elevate Trump to the White House?Let’s allow that it might be, but then let’s also allow that, if current polling holds, it’s not running an alternative to Biden that seems most likely to put Trump back in the presidency.That Trump-friendly polling may change. But it’s entirely possible to begin an independent candidacy and then suspend it (just ask Perot) if the situation looks entirely unpropitious. Which is what I’d advise Manchin to consider, if the donors and infrastructure are there: a patriotic attempt, to be abandoned if it’s going nowhere, but to be seen through if enough of the country desires a different choice.The Times is committed to publishing a diversity of letters to the editor. We’d like to hear what you think about this or any of our articles. Here are some tips. And here’s our email: letters@nytimes.com.Follow The New York Times Opinion section on Facebook, Twitter (@NYTOpinion) and Instagram. More

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    RFK Jr. Reveals How Voters Are Dreading a Trump-Biden Rematch

    Frustration with the two men likely to be the major parties’ nominees has led voters to entertain the idea of other options, New York Times/Siena College polls found.A looming rematch next year between President Biden and former President Donald J. Trump has left voters deeply dissatisfied with their options, longing for alternatives and curious about independent candidates like Robert F. Kennedy Jr., according to new polls of six battleground states conducted by The New York Times and Siena College.Both Mr. Biden and Mr. Trump are viewed unfavorably by a majority of voters in these states, one-fifth of voters don’t like either of them, and enthusiasm about the coming election is down sharply compared with a poll conducted before the 2020 contest.That frustration and malaise have prompted voters to entertain the idea of other options. When asked about the likeliest 2024 matchup, Mr. Biden versus Mr. Trump, only 2 percent of those polled said they would support another candidate. But when Mr. Kennedy’s name was included as an option, nearly a quarter said they would choose him.That number almost surely inflates the support of Mr. Kennedy, the political scion and vaccine skeptic, because two-thirds of those who said they would back him had said earlier that they would definitely or probably vote for one of the two front-runners.The polling results include registered voters in Arizona, Georgia, Michigan, Nevada, Pennsylvania and Wisconsin. The findings suggest that Mr. Kennedy is less a fixed political figure in the minds of voters than he is a vessel to register unhappiness about the choice between Mr. Biden and Mr. Trump.A Fifth of Voters in Battleground States Dislike Both Leading CandidatesRespondents’ opinions of President Biden and former President Donald J. Trump More

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    The Real Danger in Robert F. Kennedy Jr.’s Independent Run

    Most of the concern over the independent presidential campaigns of Robert F. Kennedy Jr., Cornel West and the No Labels party has focused on the risk that they could draw votes away from President Biden and throw the 2024 election to Donald Trump. That’s understandable, given what happened in 2000 and 2016.But there is another reason to fear these candidacies, and it’s right there in the Constitution: a contingent election decided by the House of Representatives, arguably the worst part of the Electoral College system.Ask people who don’t like the Electoral College — that’s roughly two-thirds of Americans — and they will point to its occasional habit of awarding the presidency to the candidate who comes in second in the popular vote. This fundamental violation of majority rule has happened five times — in 1824, 1876, 1888, 2000 and 2016. It nearly happened in 2020 and threatens to do so again in 2024.Don’t get me wrong: The wrong-winner scenario is unequivocally bad. Mr. Trump once called it “a disaster for a democracy,” before it delivered him to the White House. Yet it is not the most democratically offensive feature of the Electoral College. Few Americans are aware that under the Constitution, a candidate could lose the popular vote and the Electoral College and still become president. In fact, it’s already happened.How? By taking the election completely away from the people and giving it to the House of Representatives. This may sound far-fetched, but it is alarmingly plausible at a moment when the major-party candidates are relatively unpopular. No Labels (which is also the No Candidate party at the moment) seems to think that a contingent election is an entirely viable path to the White House — which is true, since it is virtually impossible to imagine any third-party candidate winning the old-fashioned way. But the group seems willfully oblivious to the chaos and destabilization that contingent elections provoked in the past and undoubtedly would again, especially in such a tense and polarized political climate. It is, as the best-selling author James Michener put it in a 1969 book on the topic, “a time bomb lodged near the heart of the nation.”The bomb goes off if an independent candidate like Mr. Kennedy manages to pick up a few electoral votes and prevents either of the two main candidates from winning an outright majority of electors (at least 270 out of 538). In that case, the American people no longer have a say in the biggest election in the land. Instead, under the 12th Amendment, the top three electoral vote getters advance to a second round, in which the House of Representatives “shall choose immediately, by ballot, the president. But” — and rarely in the history of democracy has a “but” been asked to do so much — “in choosing the president, the votes shall be taken by states, the representation from each state having one vote.”Those votes in the past were decided by what a majority of a state’s delegation wanted, although the House can set different rules if it chooses. If the delegation is evenly divided, the state gets no vote. The point is, it doesn’t matter which party has more members in the House as a whole; all that matters is the happenstance of which party controls more state delegations. And right now Republicans control 26 state delegations and Democrats 22.One vote per state, with the presidency in the balance. Stop for a moment and consider the absurdity of this. North Dakota, whose single representative in Congress represents about 779,000 people, would have as much say in choosing the nation’s leader as California’s 52 House members, who together represent almost 40 million people. The two Dakotas combined (fewer than 1.7 million people, about the population of Phoenix) would wield twice as much power as Texas, with 30 million people. This is about as far from the principle of majority rule as you can get.The irony is that many founders expected this to be the standard way America would choose its presidents. As the plan took shape during the constitutional convention in 1787, Virginia’s George Mason predicted that the House would end up deciding 19 out of 20 elections. This wasn’t a bug in the system but a natural consequence of the lack of knowledge held by 18th-century Americans of politicians outside their home state. As a result, the thinking went, votes would be spread among a wide range of candidates, leaving most with some electors but none with a majority.This sounded reasonable at the time, but as soon as it happened, in the wild tie election of 1800, it nearly collapsed the young nation, and the founders quickly realized what a bad idea it was. Congress rapidly passed the 12th Amendment to avoid a repeat. Thomas Jefferson, who prevailed that year, later wrote to a friend that the House-election provision was “the most dangerous blot in our Constitution, and one which some unlucky chance will some day hit.” He was proved right in 1824, when a four-way race for the White House prevented any of the candidates from winning an outright majority. Andrew Jackson led in electoral votes and popular votes, but the House picked the second-highest vote getter, John Quincy Adams. Jackson’s supporters were furious. They called it a corrupt bargain, and for good reason: Henry Clay, the speaker of the House and one of the other candidates in the race, hated Jackson and strong-armed lawmakers to vote for Adams, who later chose Clay for secretary of state.The House has not decided a presidential election in the 200 years since, although it came close in 1968, during a tumultuous three-way race among Richard Nixon, Hubert Humphrey and George Wallace, the former Alabama governor who ran on the ultraright American Independent Party ticket. Nixon won but not before Wallace, an archsegregationist, captured 46 electoral votes in five Southern states.Now imagine that in 2024, a No Labels candidate or even Mr. Kennedy or Mr. West is able to peel off a few electors in, say, Maine or Alaska, states that pride themselves on their independent streaks. (Maine awards its electors by congressional district, making it even easier to pick one off.) It’s not a simple task, given the varied and sometimes strict ballot-access rules in many states. Many fans of Mr. Kennedy and Mr. West may never get a chance to vote for them. Still, No Labels has managed to secure a spot on the ballot in 11 states, including key battlegrounds like Arizona and North Carolina.Bottom line: It’s easy to assemble an electoral map in which no candidate reaches 270 electoral votes, sending the election to the House. That vote would not take place until early January 2025, after the newly elected Congress is seated, but even if Democrats regain a numerical majority in the House, Republicans are likely to hold and possibly expand their advantage in state delegations. In other words, assuming Mr. Trump is still a free man, he could be picked by the House to be the 47th president, even if Mr. Biden wins millions more popular votes and the most electoral votes.It is reckless fantasy for a group like No Labels to inject more choices into a system that is not designed to handle them. That may sound like democracy in theory, but in practice it produces the opposite: a greater chance of a candidate winning with the support of only a minority. That’s all the more likely when the two major parties are as closely divided as they are today.This isn’t an argument against more political parties. To the contrary, multiparty democracies can give voters a wider and healthier range of choices, better reflecting the diversity of the electorate.A huge, diverse country like the United States should welcome reforms like a proportional election system — and, while we’re on the subject, the elimination of the Electoral College in favor of a national popular vote. Until then, the quixotic campaigns by today’s professed independents aren’t just futile; they’re dangerous.The Times is committed to publishing a diversity of letters to the editor. We’d like to hear what you think about this or any of our articles. Here are some tips. And here’s our email: letters@nytimes.com.Follow The New York Times Opinion section on Facebook, Twitter (@NYTopinion) and Instagram. More

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    Dennis Kucinich Leaves Robert F. Kennedy Jr.’s Presidential Campaign

    In a shake-up just days after announcing his independent bid, Robert F. Kennedy Jr. replaced his campaign manager Dennis J. Kucinich with his daughter-in-law.Dennis J. Kucinich left his post as the presidential campaign manager for Robert F. Kennedy Jr., and was replaced by Mr. Kennedy’s daughter-in-law, a political neophyte best known for a memoir about her tenure in the C.I.A.The campaign shake-up comes at a moment of renewed scrutiny on Mr. Kennedy’s campaign. The political scion of one of the most influential families in contemporary American politics announced on Monday that he was ending his Democratic primary challenge to President Biden and would continue his campaign as an independent candidate.Mr. Kucinich’s departure came a surprise even to Mr. Kennedy’s press secretary, who was informed of it on Friday afternoon by a New York Times reporter. In a subsequent news release, Mr. Kennedy said his campaign had “benefited enormously from the political experience of Dennis Kucinich.” Mr. Kucinich was not quoted in the release.Mr. Kennedy’s new campaign manager is Amaryllis Fox Kennedy, a former C.I.A. agent, memoirist and documentarian who in 2018 married Mr. Kennedy’s son, Robert F. Kennedy III.“Amaryllis is a woman of extraordinary intelligence and drive who I am confident will take this campaign to the next level,” Mr. Kennedy said in the news release.Ms. Kennedy has already been on the campaign payroll, according to the campaign’s financial report covering the three-month period ending Sept. 30, which was filed with the Federal Election Commission on Friday.Ms. Kennedy’s social media is a hodgepodge of condemnations of American support for and involvement in overseas wars along with her critical reporting about the country’s fight to eradicate illegal drugs. She also posted a eulogy of her family’s parrot, Toots. She revealed little about her prior involvement in Mr. Kennedy’s presidential campaign beyond a July Instagram post urging followers to watch a 35-minute speech of his.Mr. Kucinich, a former Democratic congressman who twice ran for president himself, has been with Mr. Kennedy, a leading vaccine skeptic and purveyor of conspiracy theories, since he began his run for office in April. He introduced Mr. Kennedy at the Philadelphia rally where Mr. Kennedy announced his independent bid.Mr. Kucinich confirmed in a brief interview on Friday afternoon, before the campaign release came out, that he was no longer Mr. Kennedy’s campaign manager. He said that he would “not discuss any internal communications of the campaign.”In the message to campaign staff members sent earlier on Friday, Mr. Kucinich praised the work of the “powerful team” that was ready to take the campaign in a “new direction.” He added: “That patriotic goal is within sight, and I urge each of you to hold fast.” More

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    The Spoiler Threat of R.F.K. Jr.

    Mary Wilson, Stella Tan and Rachel Quester and Dan Powell and Listen and follow The DailyApple Podcasts | Spotify | Amazon MusicRobert F. Kennedy Jr. was once dismissed as a fringe figure in the 2024 presidential race. But this week, as he announces an independent run for the White House, he’s striking fear within both the Democratic and Republican parties.Rebecca Davis O’Brien, who covers campaign finance for The Times, explains why.On today’s episodeRebecca Davis O’Brien, a reporter covering campaign finance and money in U.S. elections for The New York Times.Robert F. Kennedy Jr., a leading vaccine skeptic and purveyor of conspiracy theories, has said he represents “a populist movement that defies left-right division.”Ryan David Brown for The New York TimesBackground readingRobert F. Kennedy Jr. told supporters he would end his campaign as a Democratic candidate and run as an independent, potentially upsetting the dynamics of the 2024 election.From July, five noteworthy falsehoods Mr. Kennedy has promoted.There are a lot of ways to listen to The Daily. Here’s how.We aim to make transcripts available the next workday after an episode’s publication. You can find them at the top of the page.Rebecca Davis O’Brien More

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    How the Left Is Reacting to the Hamas Atrocities

    More from our inbox:Robert F. Kennedy Jr.’s Candidacy: Demeaning the Family’s LegacyGender InequalityTrump’s Harangues Getty ImagesTo the Editor:Re “The Anti-Israel Left Needs to Take a Hard Look at Itself,” by Bret Stephens (column, Oct. 11):Hamas’s systematic and indiscriminate rape, torture, murder and kidnapping of children, grandmothers, ravers and peace activists are brutal enough. What compounds the despair, however, has been the response in the immediate aftermath by some of my fellow liberals.These are the people who reflexively see “microaggressions” everywhere, yet are blind to this macroaggression. The people who insist that “words are violence,” yet celebrated actual violence against innocents as a form of “resistance.” The people who are quick to accuse so many institutions of systemic racism, yet glorify an institution (Hamas) that has been publicly and unapologetically antisemitic for decades.It is possible, as I do, to support and sympathize with ordinary Palestinians, and strive for a future of peaceful coexistence, while also recognizing the unequivocal depravity of these terrorist attacks. This was not a difficult moral test. Yet liberals failed miserably.Mark BessoudoLondonTo the Editor:Bret Stephens is right to call out supporters of Palestinian rights who minimize or even celebrate the atrocities committed by Hamas, and to point to the explicit or implicit antisemitism of some anti-Zionist arguments.However, his claim that to call for a cease-fire is pro-Hamas is wrong. It is rather to call for the taking of innocent life on both sides to cease. Israeli officials made it clear that they would exercise no restraint in their bombardment of Gaza, and Israeli actions have followed through on these words.Let’s leave aside questions of “moral equivalence” between actors, and focus on actions. Deliberately killing civilians and deliberately failing to avoid killing civilians are both war crimes under international law.Stopping criminal killing on all sides and releasing hostages are not only vital for upholding the increasingly fragile and widely disregarded framework of international law, but also an essential step toward attempting to bring a just peace to the Middle East.Chris SinhaNorwich, EnglandThe writer is an honorary professor in the School of Politics, Philosophy, Language and Communication, University of East Anglia.To the Editor:Thanks to Thomas L. Friedman (“Israel Has Never Needed to Be Smarter Than Now,” column, Oct. 11) and Bret Stephens for their brilliant analyses of the situation in the Middle East. I am a secular American Jew, a proud liberal who is appalled at the authoritarian tendencies of the Netanyahu regime.There is no doubt in my mind that decades of harsh treatment of Palestinians by Israel has led to tremendous frustrations, and that Benjamin Netanyahu has exacerbated the problem, but nothing justifies the terrorist actions taken by Hamas.Israelis must boot Mr. Netanyahu and his ilk, and elect leaders who will offer Palestinians respect and some measure of hope. The Middle East powers such as Saudi Arabia and Jordan must dislodge Hamas, and blunt the influence of Iran in the area.New leadership is the only way to achieve a lasting peace. I am not holding my breath.Bill GottdenkerMountainside, N.J.To the Editor:In the last few days we have witnessed with horror and disbelief that Israeli civilians, including children, have been killed and captured by Hamas. This is the true definition of terrorists — those who try to intimidate civilians to pursue a political goal.The stated political goal of Hamas is the eradication of the state of Israel. This is what makes peace so elusive in this region. The right of Israel to exist is reality. When we see Hamas taking up arms and the cheering for the barbarous acts committed on an innocent civilian population in Israel, we too should raise our voices in unison. We should declare that this type of terror has no place in a civilized world.Deborah GitomerTampa, Fla.To the Editor:The horrors visited upon Israeli civilians ought not to be replicated in Gaza. The international community, including the United Nations and nongovernmental organizations, ought to press and support Egypt in immediately setting up refugee centers and opening the border to rescue innocent civilians in Gaza and give them shelter, food and water.Isebill V. GruhnSanta Cruz, Calif.The writer is emerita professor of politics at the University of California, Santa Cruz.Robert F. Kennedy Jr.’s Candidacy: Demeaning the Family’s LegacyRobert F. Kennedy Jr., a longtime vaccine skeptic, has built a base of support made up of disaffected voters across the political spectrum.Matt Rourke/Associated PressTo the Editor:Re “Kennedy Announces He Will Run for President as an Independent” (news article, Oct. 10):Robert F. Kennedy Jr.’s candidacy as an independent is an unwelcome development. It serves no purpose other than increasing the chances of a Donald Trump victory by dividing the anti-Trump votes. It is no accident that most of his financial support comes from groups aligned with the G.O.P.It is telling that no fewer than four of his siblings — Rory, Kerry, Kathleen and Joseph — have publicly condemned Mr. Kennedy’s candidacy. I hope that anyone considering supporting him listens to the warnings of his siblings.He may share the surname of a political dynasty, but Mr. Kennedy demeans the legacy of his father and uncles, and does the nation a disservice with his candidacy.Harvey M. BermanWhite Plains, N.Y.Gender InequalityElsa/Getty ImagesClaudia Goldin’s wide-ranging work has delved into the causes of the gender wage gap and the evolution of women’s participation in the labor market.Harvard University/EPA, via ShutterstockTo the Editor:Re “Travis, Don’t Fumble Taylor,” by Maureen Dowd (column, Oct. 8), and “Trailblazer in Economics Is Awarded Nobel Prize” (Business, Oct. 10):Ms. Dowd’s concern about successful men who feel intimidated by powerful women offers a striking and poignant example of one attitude that perpetuates the gender inequality and couple inequity that Claudia Goldin, the Nobel prize recipient, has analyzed in the workplace and the home.The roots of this inequality are so deeply embedded and so historically interwoven in personal behaviors and relationships as well as social and economic structures that lasting change will not result unless there is a simultaneous assault on all these fronts.Patricia AusposQueensThe writer is the author of “Breaking Conventions: Five Couples in Search of Marriage-Career Balance at the Turn of the 19th Century.”Trump’s HaranguesSupporters of former President Donald J. Trump gathered near Trump Tower the night before the first day of the fraud trial against him and his company.Dave Sanders for The New York TimesTo the Editor:Re “Trump Sharpens His Remarks as His Legal Woes Escalate” (news article, Oct. 4):I was a career public defender in coastal Mississippi, representing thousands of indigent people charged with felonies. Not one of them ever stood outside a courtroom and harangued or denigrated his or her judge, and I have no doubt about what would have occurred if they had. Off to jail for contempt they’d go.The media deserves some blame for the problem, for giving Donald Trump the forum he so desires, no matter his blather. Maybe it should back off a bit.Ross Parker SimonsPascagoula, Miss. More

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    Israel Orders Gaza ‘Siege,’ Hamas Threatens to Kill Hostages, and More

    The New York Times Audio app is home to journalism and storytelling, and provides news, depth and serendipity. If you haven’t already, download it here — available to Times news subscribers on iOS — and sign up for our weekly newsletter.The Headlines brings you the biggest stories of the day from the Times journalists who are covering them, all in about 10 minutes. Hosted by Annie Correal, the new morning show features three top stories from reporters across the newsroom and around the world, so you always have a sense of what’s happening, even if you only have a few minutes to spare.Israel has continued to strike Gaza and its northern border in the wake of Hamas’s large-scale surprise attack.Samar Abu Elouf for The New York TimesOn Today’s Episode:Israel Orders “Siege” of Gaza; Hamas Threatens to Kill Hostages, with Patrick KingsleyAcross the Middle East, a Surge of Support for Palestinians as War Erupts in Gaza, with Vivian NereimRobert F. Kennedy Jr. to Run for President as Independent, Leaving Democratic Primary, with Rebecca Davis O’BrienEli Cohen 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