■Biden and Trump pick up Super Tuesday wins across the nation.

■Results could ramp up pressure on Nikki Haley to exit the race.

■Trump and Biden can become the presumptive nominees by mid-March.

WASHINGTON — President Joe Biden and his predecessor, Donald Trump, were sweeping the coast-to-coast contests on Super Tuesday, all but cementing a November rematch and increasing pressure on the former president’s last major rival, Nikki Haley, to leave the Republican race.

Biden and Trump had each won Texas, Alabama, Colorado, Maine, Oklahoma, Virginia, North Carolina, Tennessee, Arkansas, Minnesota and Massachusetts. Biden also won the Democratic primaries in Vermont and Iowa.

Haley’s strongest performance was in Vermont, where she was essentially tied with Trump in early results. But the former president carried other states that might have been favorable to Haley such as Virginia and Maine, which have large swaths of moderate voters like those who have backed her in previous primaries.

Not enough states will have voted until later this month for Trump or Biden to formally become their parties’ presumptive nominees. But the primary’s biggest day made their rematch a near certainty. Both the 81-year-old Biden and the 77-year-old Trump continue to dominate their parties despite facing questions about age and neither having broad popularity across the general electorate.

The only contest either of them lost Tuesday was the Democratic caucus in American Samoa, a tiny U.S. territory in the South Pacific Ocean. Biden was defeated by unknown candidate Jason Palmer, 51 votes to 40.

While much of the focus is on the presidential race, there are also important down-ballot contests. California voters will choose candidates who will compete to fill the Senate seat long held by Dianne Feinstein. The governor’s race will take shape in North Carolina, a state that both parties are fiercely contesting ahead of November.

And in Los Angeles, a progressive prosecutor is attempting to fend off an intense reelection challenge in a contest that could serve as a barometer of the politics of crime.

Biden, Trump Face Questions About Their Age

The spotlight, however, remains on the 81-year-old Biden and the 77-year-old Trump, who continue to dominate their parties despite both facing questions about their age and neither commanding broad popularity across the general electorate.

The earliest either can become his party’s presumptive nominee is March 12 for Trump and March 19 for Biden. But, in a departure from most previous Super Tuesdays, both nominations are effectively settled, with Biden and Trump both looking ahead to a reprise of the 2020 general election. Trump still faces one major challenger, former U.N. Ambassador Nikki Haley, but has mostly focused on Biden in his rallies and interviews.

“We have to beat Biden — he is the worst president in history,” Trump said Tuesday on “Fox & Friends.”

Biden countered with a pair of radio interviews aimed at shoring up his support among Black voters, who helped anchor his 2020 coalition.

“If we lose this election, you’re going to be back with Donald Trump,” Biden said on the “DeDe in the Morning” show hosted by DeDe McGuire. “The way he talks about, the way he acted, the way he has dealt with the African American community, I think, has been shameful.”

Polls Say Americans Don’t Want a Biden-Trump Rematch

Despite Biden’s and Trump’s domination of their parties, polls make it clear that the broader electorate does not want this year’s general election to be identical to the 2020 race. A new AP-NORC Center for Public Affairs Research poll finds a majority of Americans don’t think either Biden or Trump has the necessary mental acuity for the job.

“Both of them failed, in my opinion, to unify this country,” said Brian Hadley, 66, of Raleigh, North Carolina.

The final days before Tuesday demonstrated the unique nature of this year’s campaign. Rather than barnstorming the states holding primaries, Biden and Trump held rival events last week along the U.S.-Mexico border, each seeking to gain an advantage in the increasingly fraught immigration debate.

After the Supreme Court ruled 9-0 on Monday to restore Trump to primary ballots following attempts to ban him for his role in helping spark the Capitol riot, Trump pointed to the 91 criminal counts against him to accuse Biden of weaponizing the courts.

“Fight your fight yourself,” Trump said. “Don’t use prosecutors and judges to go after your opponent.”

Biden Will Deliver State of the Union Address on Thursday

Biden delivers the State of the Union address Thursday, then will campaign in the key swing states of Pennsylvania and Georgia.

The president will defend policies responsible for “record job creation, the strongest economy in the world, increased wages and household wealth, and lower prescription drug and energy costs,” White House communications director Ben LaBolt said in a statement. LaBolt also drew a contrast to Trump’s priorities which he described as “rewarding billionaires and corporations with tax breaks, taking away rights and freedoms, and undermining our democracy.”

Biden’s campaign called attention to Trump’s most provocative statements that evoked Adolf Hitler by declaring that immigrants are “poisoning the blood” of the U.S. and suggesting flippantly that he would serve as a dictator on his first day back in the White House.

Trump recently told a gala for Black conservatives that he believed African Americans empathized with his four criminal indictments. That drew another rebuke from Democrats around the country for comparing personal legal struggles to the historical injustices Black people have faced in the U.S.

The former president has nonetheless already vanquished more than a dozen major Republican challengers and now has only Haley left. She has maintained strong fundraising and notched her first primary victory over the weekend in Washington, D.C., a Democrat-run city with few registered Republicans. Trump scoffed that Haley had been “crowned queen of the swamp.”

“We can do better than two 80-year-old candidates for president,” Haley said at a rally Monday in the Houston suburbs.