President Joe Biden’s campaign continues to resist calls that he drop out of the 2024 presidential race following his lackluster performance in the first debate with Donald Trump. 

Most top Democrats have voiced support for Biden continuing in the race, while members of his family, including first lady Jill Biden, have declared they also want him to remain a candidate. But if Biden were to step aside, several prominent Democrats could be waiting in the wings as possible successors.

Among them: Vice President Kamala Harris, California Governor Gavin Newsom, Michigan Governor Gretchen Whitmer, Transportation Secretary Pete Buttigieg, Pennsylvania Governor Josh Shapiro, Illinois Governor JB Pritzker and Kentucky Governor Andy Beshear.

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Kamala Harris 

If Biden were to decide against seeking reelection, Vice President Harris would be the most obvious choice to replace him. Harris has defended Biden and emphasized his ability to serve another term in recent days, as have most other top Democrats who could be considered. 

Serving in the country’s second-highest office has given her some executive governing experience, and Biden’s choice of her as his running mate already made her one of the top possible candidates for the 2028 nomination. 

With the presidential primaries concluded Harris is also the only possible contender who could claim some past electoral mandate for the nomination, with the country having indirectly elected her as first-in-line to the presidency four years ago and Democratic voters backing Biden this year with the knowledge that she is the running mate. 

But Harris has some vulnerabilities. Her favorability rating has often been even lower than Biden’s. However, she has improved somewhat in the past couple of months and has a higher net approval rating than Biden, according to FiveThirtyEight. 

She could also be dogged by criticisms of the Biden administration’s policies, such as immigration, on which she was spearheading an initiative. 

Still, Democrats could suffer by passing over the first female Black vice president as their nominee when having the chance because Black voters will be a key constituency. A poll last month showed Harris would perform better with Black voters than Biden. 

Gavin Newsom 

If Harris were to be passed over, California Gov. Gavin Newsom would almost certainly be at or near the top of many Democratic delegates’ lists to be the nominee. 

Newsom has become one of the most prominent Democrats in the country over the past few years, partly because he defended Biden and his sparring with prominent Republicans, most notably Florida Gov. Ron DeSantis (R). 

Despite speculation that Newsom has presidential ambitions, he has repeatedly denied interest in running for president in 2024. Following Biden’s debate, he appeared in the spin room to argue against ditching Biden just because of one performance. He called talk of Biden being replaced “unhelpful and unnecessary” in a fundraising pitch for the president on Friday. 

But if Biden were to step aside, Newsom would very likely receive significant calls to enter the race. 

He would be able to run on a record as a two-term governor of one of the largest economies in the world and tout many accomplishments during his tenure for the left in the solidly blue state. He also has overcome an attempt to recall him and is seen as a top possibility to run in 2028. 

Gretchen Whitmer 

Michigan Gov. Gretchen Whitmer first came to office in 2018, boosted by the slogan “Fix the Damn Roads,” which put a pragmatic focus on repairing the state’s infrastructure. Since then, she has become a rising liberal star in the Democratic Party. 

Her easy reelection victory in 2022 brought with it Democratic majorities in the state House and Senate, marking the first time in decades that Democrats had a trifecta of power in Michigan. She was also reelected alongside the passage of a ballot measure enshrining abortion rights in the state constitution, an initiative she championed. 

Whitmer has been able to notch key victories, including the repeal of the state’s decades-old abortion ban and a “right-to-work” law to prop up unions. 

Still, Whitmer has been among the clearest of the rumored choices ,tandshe is not angling to replace Biden and is fully behind him. 

Politico reported that Whitmer called Biden campaign chair Jen O’Malley Dillon on Friday to make clear that she was not responsible for her name being floated as a possible replacement and that she was willing to help Biden with the campaign. She appeared in an ad supporting the Biden-Harris ticket that she posted Sunday on her account on the social platform X. 

Pete Buttigieg 

Transportation Secretary Pete Buttigieg was relatively unknown when he first began his run for president in 2020 but gained traction and popularity as “Mayor Pete,” having served as the mayor of South Bend, Ind. 

Buttigieg became a close advocate for Biden throughout 2020, culminating in his selection as Transportation secretary, making him the first openly gay Cabinet secretary. His success has raised speculation that he may try for another presidential run. 

In particular, he had a high-profile moment in 2021 as Congress passed and Biden signed the bipartisan infrastructure law into effect. 

Buttigieg’s youth would also sharply contrast Biden despite having less experience than some other rumored possibilities. But he struggled in 2020 with rallying minority, especially Black, support and could face controversy over the administration’s handling of the East Palestine, Ohio, train derailment. 

Josh Shapiro 

Pennsylvania Gov. Josh Shapiro gradually rose to higher office in his home state before being elected state attorney general and eventually governor in 2022. He has developed a reputation over his career as a more moderate Democrat but was elected after running on key liberal issues, like protecting abortion rights and raising the minimum wage. 

His ability to comfortably win the governorship in the battleground by almost 15 points, as well as his youthful energy, has sparked rumors he could be a future face of the party, possibly running for the Oval Office in four years. 

But he would also likely get some attention this year if Biden were to end his presidential bid. He has been one of Biden’s top surrogates and called on his fellow Democrats to put in the work necessary to get Biden elected, saying “hand-wringing” and “fretting” are not the answer. 

“Democrats, stop worrying and start working. We all have the responsibility here to do our part,” Shapiro said during a Friday interview on MSNBC. 

JB Pritzker 

As the governor of Illinois, JB Pritzker is already set to receive some attention next month as the host governor of the Democratic National Convention in Chicago. This, along with his rising national profile, could yield some support for his name to be placed in contention for the nomination. 

Pritzker is in his second term as the head of the strongly Democratic-leaning state and has been an ardent defender of Biden throughout the 2024 campaign. Also one of Biden’s top surrogates, he defended the incumbent following special counsel Robert Hur’s report on Biden’s handling of classified documents and pushed back against Democrats planning to vote for anyone other than Biden in November. 

Pritzker also received attention after his abortion-rights group announced a $500,000 investment into efforts to enshrine abortion rights into the Florida state constitution. 

But as with other Biden surrogates rumored as future presidential candidates, Pritzker has remained behind Biden. 

As the debate was wrapping up on Thursday, Pritzker argued on X the choice was “clear” in picking Biden over Trump, saying, “Voters face a stark choice in November. A president with the experience to fight for hardworking families across the country vs a 34-count convicted felon who cares only about himself.” 

Andy Beshear 

Kentucky Gov. Andy Beshear (D) pulled off an impressive reelection victory in his ruby-red state last year, improving his margin by a few points over his first election in 2019. 

That thrust his name into the national conversation as someone who may have a future in the party, even though he will be term-limited in the next election. The governor is widely popular, only in his mid-40s and managed to win statewide as a Democrat twice in a state that hasn’t voted for a Democrat in a presidential election since the 1990s. 

Beshear addressed the possibility of Biden being replaced Monday, telling reporters he will support Biden as long as the president remains the Democratic nominee. 

“The debate performance was rough. It was a very bad night for the president, but he is still the candidate. Only he can make decisions about his future candidacy. So as long as he continues to be in the race, I support him,” he said. 

When pressed on whether he could replace Biden, Beshear said talk of serving is “flattering” but is a “reflection of all the good things going on in Kentucky.”