WASHINGTON ? President Joe Biden and former President Donald Trump clinched their parties’ presidential nominations Tuesday with decisive victories in a slate of low-profile primaries, setting up a general election rematch that many voters do not want.

The outcome of contests across Georgia, Mississippi and Washington State was never in doubt. Neither Biden, a Democrat, nor Trump, a Republican, faced major opposition. But the magnitude of their wins gave each man the delegate majority he needed to claim his party’s nomination at the summertime national conventions.

Not even halfway through the presidential primary calendar, Tuesday marked a crystalizing moment for a nation uneasy with its choices in 2024.

There is no longer any doubt that the fall election will feature a rematch between two flawed and unpopular presidents. At 81, Biden is already the oldest president in U.S. history, while the 77-year-old Trump is facing decades in prison as a defendant in four criminal cases. Their rematch ? the first featuring two U.S. presidents since 1912 ? will almost certainly deepen the nation’s searing political and cultural divides over the eight-month grind that lies ahead.

In a statement, Biden celebrated the nomination while casting Trump as a serious threat to democracy.

Trump, Biden said, ”is running a campaign of resentment, revenge, and retribution that threatens the very idea of America.”

He continued, ”I am honored that the broad coalition of voters representing the rich diversity of the Democratic Party across the country have put their faith in me once again to lead our party ? and our country ? in a moment when the threat Trump poses is greater than ever.”

On the eve of Tuesday’s primaries, Trump acknowledged that Biden would be the Democratic nominee, even as seized on the president’s age.

“I assume he’s going to be the candidate,” Trump said of Biden on CNBC. ”I’m his only opponent other than life, life itself.”

Both candidates dominated Tuesday’s primaries in swing-state Georgia, deep-red Mississippi and Democratic-leaning Washington. Voting was taking place later in Hawaii’s Republican caucus.

Despite their tough talk, the road ahead will not be easy for either presumptive nominee.

Trump is facing 91 felony counts in four criminal cases involving his handling of classified documents and his attempt to overturn the 2020 election, among other alleged crimes. He’s also facing increasingly pointed questions about his policy plans and relationships with some of the world’s most dangerous dictators. Trump met privately on Friday with Hungarian Prime Minister Viktor Orbán, who has rolled back democracy in his country.

Biden, who would be 86 years old at the end of his next term, is working to assure a skeptical electorate that he’s still physically and mentally able to thrive in the world’s most important job. Voters in both parties are unhappy with his handling of immigration and inflation.

And he’s dealing with additional dissension within his party’s progressive base, furious that he hasn’t done more to stop Israel’s war against Hamas in Gaza. Activists and religious leaders in Washington encouraged Democrats to vote ”uncommitted” to signal their outrage.

In Seattle, 26-year-old voter Bella Rivera said they hoped their ”uncommitted” vote would would serve as a wakeup call for the Democratic party.

”If you really want our votes, if you want to win this election, you’re going to have to show a little bit more either support of Palestinian liberation ? that’s something that’s very important to us ? and ceasing funds to Israel,” said Rivera, a preschool teacher who uses they/them pronouns.

Almost 3,000 miles away in Georgia, retiree Donna Graham said she would have preferred another Republican nominee over Trump, but she said there’s no way she’d ever vote for Biden in the general election.

”He wasn’t my first choice, but he’s the next best thing,” Graham said of Trump. ”It’s sad that it’s the same old matchup as four years ago.”

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Associated Press writers Hallie Golden in Seattle, Jeff Amy in Loganville, Georgia, Fatima Hussein in Manchester, New Hampshire, and Jill Colvin in New York contributed to this report.