MIAMI, USA (AP) — Republicans are eyeing major gains in Tuesday’s elections and appealing to supporters over the campaign’s final weekend to punish Democrats for high inflation and crime rates that have risen in some parts of the country.

President Joe Biden and his two most recent Democratic White House predecessors warned that GOP victories could undermine the very future of American democracy.

More than 39 million people have already voted in an election that will decide control of Congress and key governorships. Biden was campaigning in suburban New York on Sunday evening, a day after former presidents Barack Obama and Bill Clinton made closing cases to voters.

Rep Sean Patrick Maloney, head of the Democrats’ House campaign arm, is in a tough contest for his seat north of New York City. But he insisted Sunday that Democrats are “going to do better than people think on Tuesday”, adding that his party is “not perfect”, but “we are responsible adults who believe in this democracy”.

“I think this race is razor-close and I think everybody who cares about the extremism in this MAGA movement — the racism, the antisemitism, the violence — needs to get out and vote and that’s not just Democrats, it’s independents and fair-minded Republicans,” Maloney told NBC‘s Meet the Press, referring to former President Donald Trump’s Make America Great Again slogan.

Florida Senator Rick Scott, who heads the Republicans’ Senate campaign arm, countered: “We have great candidates. People are showing up to vote.”

“There’s no energy on the Democrat side,” he said on NBC. “This election is about the Biden agenda.”

Trump rallied in Miami on Sunday evening with the hope that a strong GOP showing on election day would generate momentum for the 2024 run that he is expected to launch this month.

“I will probably have to do it again, but stay tuned,” Trump said, teasing an event the former president has with his endorsed Senate candidate in Ohio, JD Vance, for Monday. “We have a big, big rally. Stay tuned for tomorrow night in Ohio.”

Trump also told the crowd that “every free and loving American needs to understand that the time to stand up to this growing left-wing tyranny is right now”, while calling on his supporters to reject the “radical left-wing maniacs”, and adding that Hispanics would show up strong for GOP candidates.

Scott attended the rally. Not invited was Florida’s Republican Governor Ron DeSantis, who is running for re-election against Democrat Charlie Crist and is widely considered Trump’s most formidable challenger, if he also were to get into the White House race.

DeSantis held his own, separate events Sunday in another part of the state where he stuck to the centerpieces of his re-election campaign, including railing against COVID-19 vaccine mandates and “wokeness” in schools and other parts of society. The governor’s counter-political programming avoided antagonising Trump — meaning, it didn’t deliver the duelling 2024 events that could be in his and Trump’s near future.

Trump, though, didn’t return that favour. On Saturday night, the former president said he hoped the GOP would have “an historic victory” in the midterms. But he also referred to Florida’s governor as “Ron DeSanctimonious”. It’s a rivalry that’s been simmering for more than a year as DeSantis has taken increasingly bold steps to boost his national profile and build a deep fund-raising network.

By most measures Trump remains easily the most popular figure in the Republican Party. But many Trump supporters are eager for the prospect that DeSantis might run, seeing him as a natural successor to Trump, without Trump’s considerable political negatives.

The former president has privately groused about DeSantis for failing to say definitively that he will sit out the race.

When Joe O’Dea, the GOP candidate for the Senate in Colorado, said he would prefer someone other than Trump as the 2024 nominee and cited DeSantis and others, Trump slammed O’Dea on social media: “MAGA doesn’t Vote for stupid people with big mouths.”

Days later, DeSantis endorsed O’Dea.

For national Democrats, meanwhile, the focus is on the fate of their narrow control of the House and Senate.

Voters may rebuke the party controlling the White House and Congress amid surging inflation, concerns about crime, and pessimism about the direction of the country. History suggests the party in power will suffer significant losses in the midterms.

First Lady Jill Biden attended church services while campaigning for Democrats in Houston on Sunday.

“So much is at stake in this election,” she said. “We must speak up on justice and democracy.”

Vice-President Kamala Harris, campaigning in Chicago, said, “These attacks on our democracy will not only directly impact the people around our country, but arguably around the world.” She said America’s democracy “will only be as strong as our willingness to fight for it and that’s’ why we’re all here today”, adding, “because we are prepared to fight for it”.

Trump has long falsely claimed he lost the 2020 election only because Democrats cheated and has even begun raising the possibility of election fraud this year. Federal intelligence agencies are warning of the possibility of political violence from far-right extremists.

President Biden’s midterm pitch centres on championing his Administration’s major legislative achievements, while warning that abortion rights, voting rights, social security, and Medicare are at risk should Republicans take control of Congress.

Former President Barack Obama, who joined Biden in Philadelphia on Saturday, noted that generations of Americans died for democracy and said, “You can’t take it for granted.” Biden himself said: “We have to reaffirm the values that have long defined us.”

At a New York rally for Governor Kathy Hochul, who is seeking her first full term, Clinton said the loss of House and Senate control by Democrats would have “enormous consequences”.

Ronna McDaniel, the Republican National Committee chairwoman, said Democrats were “inflation deniers” trying to deflect the other side’s branding of her party as anti-democracy for rejecting the results of 2020’s free and fair presidential election simply because Trump lost it.

“If we win back the House and the Senate, it’s the American people saying to Joe Biden, we want you to work on behalf of us and we want you to work across the aisle to solve the problems that we are dealing with,” McDaniel told CNN‘s State of the Union.

Lee Saunders, president of the American Federation of State, County, and Municipal Employees, the nation’s largest union of public employees, with 1.4 million members, has been travelling the country rallying for Democrats. He said, “It’s going to be hard, it’s going to be tough, but we aren’t giving up hope.”

“Clearly people are concerned about the economy,” Saunders said. But voters also are “concerned about the freedoms being taken away from them, whether you’re talking about voting rights or whether your talking about a women’s right to choose”.