Here is a look at possible White House contenders:
President Joe Biden
Democratic President Joe Biden has said he intends to run for reelection and would likely make a final decision early next year after consulting with his family.
His potential candidacy was buoyed by better-than-expected results for his fellow Democrats in Tuesday's midterm elections, which White House officials deemed a vindication of his administration's policies.
One possible concern for some voters: how the 79-year-old president's age could affect his candidacy and potential performance during a second four-year term.
Former president Donald Trump
Republican former President Donald Trump launched a 2024 White House run on Tuesday.
Strategists and party leaders have said Trump, 76, remains the odds-on favorite for the Republican nomination in 2024, especially if the party succeeds in taking control of both the House of Representatives and the Senate.
But Trump had a mixed record with the candidates he endorsed in the midterm elections, and if Republicans fail to capture control of Congress, some may blame him.
Vice President Kamala Harris
Should Biden decide not to run, Vice President Kamala Harris could step in.
Harris, 58 is currently the top alternate candidate, Democratic officials tell Reuters, with the majority of opinion polls showing her second after Biden and well ahead of other potential Democratic candidates.
Her poor showing in the 2020 presidential race and lack of standout policy success as vice president have raised doubts about whether she could defeat a Republican opponent.
Florida Governor Ron Desantis
Republican Ron DeSantis, Florida's 44-year-old governor, could be Trump's leading rival for the nomination.
With a strong political base and war chest behind him, DeSantis cruised to a landslide victory on Tuesday in his bid for a second four-year term as governor.
His resistance to COVID-19 restrictions, as well as clashes with liberals over LGBTQ rights, immigration, and race-based discussions, have won praise from conservatives nationwide.
California Governor Gvin Newsom
Democratic California Governor Gavin Newsom won a second four-year term as governor on Tuesday, handily beating his Republican opponent with a campaign focused on national political issues like abortion rights and immigration.
Newsom, 55, has already contacted potential donors and staff in case Biden decides not to run, according to two sources familiar with those efforts. He is not expected to challenge Biden.
Texas Governor Greg Abbott
Republican Texas Governor Greg Abbott, endorsed by Trump in his run for a third four-year term, fended off Democratic former U.S. Representative Beto O'Rourke in Tuesday's election.
Abbott, 64, has pursued increasingly conservative policies during his second term, opposing COVID-19 vaccine and mask mandates. He signed the most restrictive abortion ban of any U.S. state into law and is building a new barrier on the border with Mexico.
Although long rumored to be a potential 2024 candidate, Abbott has not addressed the issue publicly for some time.
Former vice President Mike Pence
Republican former Vice President Mike Pence served as a loyal, prim No. 2 to the flamboyant Trump, only to have his boss turn against him on Jan. 6, 2021, when Trump supporters rioted at the U.S. Capitol. A Republican former congressman, Pence defied Trump on that day and certified Democrat Joe Biden's presidential victory, as required by law.
Pence has walked a fine line ever since, not risking the wrath of Trump's base.
The 63-year-old former Indiana governor is widely considered to be mulling a White House run. He campaigned for Brian Kemp, a Trump nemesis who was reelected Georgia governor on Tuesday.
U.S. representative Liz Cheney
Republican U.S. Representative Liz Cheney, 56, has vowed to do everything she can to keep Trump from returning to the White House and said she would decide soon on whether to run for president herself.
The daughter of former Vice President Dick Cheney has played a prominent role in the congressional investigation of the Jan. 6, 2021, assault on the Capitol.
Cheney lost the Republican Party's nominating election, or primary, for Wyoming's single seat in Congress in August to a Trump-backed challenger after saying she would not "go along with President Trump's lie about the 2020 election" to win.
Transportation secretary Pete Buttigieg
Pete Buttigieg vied for the 2020 Democratic presidential nomination before bowing out and endorsing Biden, who later named him transportation secretary.
In that role, Buttigieg has led the administration's effort to update the nation's infrastructure.
Buttigieg, 40, a former Navy Reserve officer who served as mayor of South Bend, Indiana, is the first openly gay Cabinet member in U.S. history.
Former UN ambassador Nikki Haley
A former governor of South Carolina and the daughter of Indian immigrants, Haley was the highest-profile woman in Trump's Cabinet.
Haley, 50, considered a rising Republican star, has alternately held Trump close and at bay.
She publicly criticized him during his 2016 presidential campaign and again after the Jan. 6 riot, saying his actions after the 2020 election will be "judged harshly by history."
Her rhetoric later softened when she called him a friend who still had a role to play in the party. In June, Haley teased a 2024 run, saying "if there is a place for me," and said in October she would consider the idea at the start of next year.
Michigan governor Gretchen Whitmer
Democratic Governor Gretchen Whitmer, 51, won a second four-year term on Tuesday, having campaigned hard on abortion rights after the U.S. Supreme Court overturned the constitutional right to abortion.
Her Trump-backed opponent supported a near-total ban on abortion, including for child victims of rape and incest.
In October 2020, 12 men were arrested on charges they conspired to kidnap Whitmer in a plot authorities say they hatched after she imposed restrictions during the COVID-19 pandemic. By late last month, seven of them had been convicted or pleaded guilty to playing roles in the plot.
Whitmer has said the case shows how U.S. political militancy has grown in recent years.
This story has been published from a wire agency feed without modifications to the text. Only the headline has been changed.
