It is the afternoon of 20 January 2025 and Donald Trump is in his White House dining room, glued to the same TV where he sat transfixed as the January 6 attack on the US Capitol unfolded four years ago. This morning, he completed one of the most spectacular political comebacks in US history, reciting the oath of office at the inauguration ceremony that returned him to the most powerful job on Earth.His political resurrection has caused turmoil in the transition period, and massive anti-Trump demonstrations have erupted in several big cities. In his inaugural address, the 47th president makes clear his intention to deal with his detractors: “They are rioting in the streets. We are not safe. Make our cities safe again!” he commands.The peaceful marches are portrayed on Fox News, the channel he is watching, as anarchic disorder. Trump grows increasingly incensed, and that evening calls his top team into the situation room with one purpose in mind: to end the demonstrations by any means necessary.“I need to make sure that our streets are safe from those who are running amok trying to overthrow our administration,” he tells the group of top law enforcement, national security and military officials. A flicker of alarm ripples through the room as the president cites the Insurrection Act, saying it allows him to call up the national guard in key states to suppress what he calls the “rebellion”.Discerning the concern among his top officials, Trump gives them an ultimatum. He is in no mood to compromise or stand down – he did that in his first term in the face of “deep state” opposition. “I have been charged by the American people to make this country great again,” he states, “and I need to know right now that everybody in this room is on board.”The scenario was imaginary, but the discussion around it was very real. Dozens of men and women in a Washington DC-area hotel conference center were seated at tables arranged to resemble the White House situation room, wearing name tags denoting their part in the role-play. Prominent people from both parties were in character as the president of the United States, AKA Trump; the joint chiefs of staff; Republican and Democratic governors; Congress members; federal prosecutors; religious and business leaders; and community organizers.About 175 people participated in five exercises, bringing to the process an extraordinary wealth of bipartisan institutional knowledge. Among the lineup were senior officials from successive administrations of both parties, including the Trump administration.They came with a mission: to wargame Trump acting out the most extreme authoritarian elements of his agenda and explore what could be done, should he win in November, to protect democracy in the face of possible abuses of power. What they discovered could be used to inform public debate and sound the alarm about what most participants agreed was a woeful lack of preparation.View image in fullscreenThe event was being held as part of the Democracy Futures Project, an ambitious series of nonpartisan tabletop exercises. Spearheaded by the Brennan Center for Justice, a nonpartisan law and policy institute, the role-playing games were staged in May and June amid tight security. A similar set of wargaming exercises, conducted under different leadership in 2020, pinpointed with uncanny precision Trump’s efforts to subvert that year’s presidential election.This year, the games included that imaginary scenario in which Trump, newly ensconced in the Oval Office, invokes the Insurrection Act to deploy military forces into American cities to fight supposed anarchy and crime.A second game looked at Trump’s threat to politicise federal agencies, including the justice department, and weaponise them against his political enemies. A third probed his immigration plans, which include dark warnings of mass roundups of undocumented immigrants and large-scale deportations.The Guardian attended two of the five exercises in the role of observers.The vocabulary of the exercises was that of the playground or sports field: the simulations were “games” revolving around “role-play”, with participants acting in the characters of Trump, his cabinet, military, law enforcement and congressional leaders, split into Trump’s “red” team and an oppositional “blue” team. Despite the linguistic levity, the purpose of the enactments could not have been more grave.“This is a pivotal moment for our democracy,” said Christine Todd Whitman, the former Republican governor of New Jersey and former administrator of the Environmental Protection Agency, who took part in the Insurrection Act simulation. “I believe very strongly that, should Trump be elected, we’re going to see a vast change and our democracy will not be what it looks like today.”The sense of urgency surrounding the gatherings has intensified dramatically as a result of recent events. Since the war games were staged, Trump has been emboldened by the attempt on his life at a Pennsylvania rally, Joe Biden has stepped out of the race, and Kamala Harris has shot up to become the presumptive Democratic candidate. The course of the election – and its outcome – is now deeply uncertain.Participants attended under the so-called Chatham House rule, meaning that what was said in the simulations could be reported publicly but not who said it. Some individuals agreed to be named, including Michael Steele, former chair of the Republican National Committee; Elizabeth Neumann, deputy chief of staff of the Department of Homeland Security under Trump; and Richard Danzig, the navy secretary under Bill Clinton.That so many prominent public figures were prepared to set aside entire days to delve deeply into a hypothetical was in itself a sign of these troubled and profoundly anxious times. “A lot of people are getting worried,” Whitman said, “and trying to figure out what guardrails are going to be left should Trump get in.”The danger with any attempt to role-play possible future scenarios is that it could sound paranoid or preposterous. Trump may say extreme things, but destroy democracy? Really? The co-founders of the project, who include Barton Gellman, the Brennan Center’s senior adviser and a former Atlantic journalist, and Rosa Brooks, a Georgetown University law professor, can point to two powerful arguments in support of the project. The first is the accuracy of the 2020 wargaming.The Transition Integrity Project imagined the then far-fetched idea that Trump might refuse to concede defeat, and, by claiming widespread fraud in mail-in ballots, unleash dark forces culminating in violence. Every implausible detail of the simulations came to pass in the lead-up to the US Capitol attack on 6 January 2021.The second ballast for the Brennan Center’s exercises was provided by Trump himself. All of this year’s scenarios were based on explicit statements from Trump and his closest allies, laying out his intended executive actions during a second term.Take the scenario that Trump might invoke the Insurrection Act to go against street protests. The 1807 law gives presidents the power to deploy the US military to suppress insurrections and quell civil unrest. Trump already considered this in 2020, when White House aides drafted a proclamation order invoking the act in preparation for suppressing Black Lives Matter protests in the wake of the police killing of George Floyd. According to the Washington Post, similar drafts have been drawn up recently by Trump associates. .“This wasn’t a fanciful or unrealistic scenario,” said Peter Keisler, former acting US attorney general under George W Bush, who participated in the simulation. “We know people associated with Trump have been looking into how to use the Insurrection Act to deploy military force domestically against protests.”Keisler said that taking part in the exercise brought home to him how hard it would be to stop such a move: “It confirmed for me that for an authoritarian-minded president, deploying the military domestically could be one of the easiest and fastest levers of power that could be pulled, given how vaguely written the statute is.”View image in fullscreenIn the course of the Insurrection Act tabletop exercise, the person role-playing Trump initially met resistance from senior military figures who tried to cling to the Posse Comitatus Act barring federal troops from engaging in civilian law enforcement. As the scenario unfolded, Trump grew impatient and ended up firing the joint chiefs of staff, replacing them with military officers who would do his bidding and federalise the national guard.The way the exercise played out jibed with the fears of another of its participants, Paul Eaton, a former major general in the US army. “I’m not sure we can count on the military in a Trump world,” he said.Eaton pointed to a letter from May 2021 signed by 124 retired generals and admirals that propagated the lie that Biden stole the 2020 election from Trump. He added that studies had shown that almost one in seven of those prosecuted for storming the Capitol on January 6 had a military background.“When you have an armed force of 2 million-plus men and women who get a steady diet of lies from Fox News and social media, then you risk ending up with a military that’s going to question what is really true,” Eaton said.The second war game observed by the Guardian involved the scenario in which Trump, on day one, sets out to drain the swamp, free the January 6 “patriots”, and lock up his political enemies. “Let’s be an intelligent authoritarian,” the participant playing Trump told his red team allies, telling them to push the boundaries of what a president can do.Over the next few hours, the president sat on his phone firing off social media posts, while his cabinet executed his agenda. The justice department announced the investigation of Biden and others in his circle, and instructed the FBI to be very aggressive, to the extent of looking for even minor crimes.By the end of the day, they had arrested three of Biden’s grandchildren and, for good measure, Mike Pence’s daughter, “just to make sure Pence keeps his mouth shut”. They also withdrew all pending criminal charges against Trump.Trump’s team also prioritised schedule F: an effort to purge the civil service of people disloyal to the president. And they instructed the treasury department to look at tools at its disposal to withhold federal funding from top US universities under the guise that they were “harboring antisemitism”In response, the blue oppositional team called congressional hearings, tried to mobilize people across the country to protest against the president’s actions, staged acts of civil disobedience, and threatened lawsuits.At the end of the simulation, the consensus among many policy experts was that the blue team’s response felt weak and inadequate, with little agreement over message. “Blue has a catch-22 because they’re forces of normality, but all of this is not normal,” one participant said.Meanwhile, the red team’s efforts may have been alarming, but they didn’t get to even a fraction of what Trump has said he wants to accomplish in his first 90 days. “That is just the tip of the iceberg,” another participant said.As the Brennan Center has highlighted in its initial findings from the war games, participants came away from the simulations sobered by the experience. Above all, they discovered that there were far fewer effective restraints at their disposal than they had expected.Asked to identify the biggest lesson she had learned, Whitman said: “How little there is we can do.”Many of the attendees concluded that this time around, the courts cannot be relied upon as the primary means of staving off Trump’s attacks. In the thick of his 2020 “stop the steal” conspiracy to overturn the election results, courts did play a critical role, rejecting Trump’s claims of illegal voting in almost all cases.Trump’s many appointments to the federal judicial bench during his term, including his game-changing three appointments to the supreme court, have dented the hope that the judiciary will be a bastion against an authoritarian president.Participants also came away rattled by the thought that Trump and his associates are now much more experienced and adept at working the federal apparatus. As one of the Trump role-players put it: “This time around, they’re going to know where the door handles are.”Such apprehensions are disturbing. Yet the intention of the exercises was not to stun pro-democracy activists into depressed paralysis.Rather, it was, as Brennan put it, to show that “time is short, and the work of preparation demands more ambition and more hands on deck”.The exercises pointed to some positive guardrails that might still hold. State governors have their own reserves of independent authority, which, if combined with the capabilities of state attorneys general, could block, or at least slow down, federal abuses.Federal officials, who are in Trump’s sights as he threatens to politicise the top of the civil service in his attack on the “deep state”, also have the ability to safeguard the workings of democratic government. It may be easier said than done in the face of mass firings, but the Brennan Center is calling for a “well-resourced campaign” to persuade civil servants to stay the course and not resign, and provide them with legal support in case of retaliation.The last resort when all else fails, many participants suggested, would probably be the power of public protest. “Public opinion, mobilized by a powerful communications strategy, can help set boundaries on authoritarian behavior,” Brennan said in its initial findings.Keisler, the former acting US attorney general, said that the war game he attended shook him more than he had expected: “Do I think there’s a genuine jeopardy to our democracy? Absolutely. Do I think the country is ready for it? No. Do I think it’s guaranteed to end well? No.”He added: “And this was just a game. Then there’s real life, and that’s ahead of us.” More