Kamala Harris's chances of beating Donald Trump in the 2024 presidential election.

Momentum builds for Harris to replace Biden at the top of the ticket with new polling showing her outperforming Biden in a hypothetical matchup with Trump.

As speculation rises about President Joe Biden's future, some voters have already indicated their preferences for potential successors on the ticket.

ABC News' Linsey Davis is joined by Vice President Kamala Harris to discuss the debate between President Joe Biden and former President Donald Trump.

The Trump campaign called them "extremists" but Trump himself said nothing on Monday.

Vice President Kamala Harris says “everything is at stake” with reproductive health rights in November's presidential election

Meeting in Switzerland, Vice President Kamala Harris met with President Zelenskyy and announced another $1.5 billion in aid to Ukraine.

The vice president will meet with Ukraine’s President Zelenskyy in Switzerland and plan to announce another $1.5 billion dollars in funds for Ukraine.

ABC News' Elizabeth Schulze speaks with Karamo Brown and original "Queer Eye" cast member Carson Kressley about progress this Pride Month and combating political apathy for the presidential election.

"This kind of rhetoric is unsurprising coming from the former president, and it is appalling and we got to tell him who we are," the vice president said.

President Biden criticized Trump for his since-deleted social media post referencing a "Unified Reich" if reelected,

Vice President Kamala Harris accepts invitation to participate in a debate against Donald Trump's running mate.

Vice President Kamala Harris has accepted an offer from CBS News to participate in a vice-presidential debate this summer, the Biden campaign said Thursday.

Florida's six-week abortion ban took effect Wednesday. Vice President Kamala Harris blamed former President Donald Trump's Supreme Court picks for enabling the policy.

Kamala Harris will travel to Jacksonville, Florida, on Wednesday, to focus on abortion access -- the same day the state's six-week abortion ban goes into effect

"This truly is a healthcare crisis and Donald Trump is the architect," Harris said just as a vote on abortion was happening in Arizona.

Vice President Kamala Harris met with Kim Kardashian and pardon recipients at the White House to discuss criminal justice reform.

Joe Biden, Kamala Harris and their spouses released their 2023 tax returns on Monday

Vice President Kamala Harris travels to Las Vegas Monday for an abortion rights event as she cements herself as a leader on the issue for President Biden's re-election.

Vice President Kamala Harris visited Arizona for a campaign stop to discuss the ongoing battle for the state's reproductive rights.

Vice President Kamala Harris traveled Friday to Tucson, Arizona, after the state's highest court upheld an 1864 abortion ban.

Arizona becomes the latest state to roll back access to abortions after the state’s Supreme Court upholds an 1864 law that essentially bans all abortions across the state.

Vice President Kamala Harris is expected to argue that former President Donald Trump is to blame for a court decision that upheld an 1864 law banning abortions in almost all circumstances.

During Rachel Scott’s interview with Harris, the vice president says the U.S. would not rule out consequences for Israel if they move forward with a military invasion of Rafah.

ABC News senior congressional correspondent Rachel Scott discusses Vice President Kamala Harris' visit to Parkland, Florida, and the Israeli delegation arriving in Washington, D.C.

Vice President Kamala Harris issued the strongest warning yet to Israel, stating the U.S. has not ruled out consequences if its troops go into Rafah.

ABC News’ Rachel Scott interviews Vice President Kamala Harris on “This Week.”

Vice President Kamala Harris is deflecting on why Biden's campaign has a TikTok account amid potential ban legislation

Kamala Harris suggested there could be "consequences" for Israel if it moves ahead with a Rafah invasion in Gaza, as Netanyahu plans

Our panel discusses Vice Pres. Kamala Harris hosting the White House's first-ever public event on marijuana reform.

Kamala Harris' planned visit to the Minnesota clinic will mark the first time a sitting vice president will visit this type of facility.

ABC News' Selina Wang and Averi Harper discuss Vice President Kamala Harris' visit to a Planned Parenthood Center in St. Paul, Minnesota.

Vice President Harris' visit to an abortion clinic spotlights her role leading the Biden administration on an issue Democrats believe will be critical in 2024.

Kamala Harris, in an interview with ABC News Chief White House Correspondent Mary Bruce on Friday, was noncommittal on if Biden will debate rival Donald Trump.

ABC News' chief White House correspondent Mary Bruce spoke with the vice president Friday, ahead of her trip to Pennsylvania.

ABC's Mary Bruce asked the vice president about Biden's State of the Union hot mic moment.

Vice President Kamala Harris called for an “immediate cease-fire” in Gaza as the U.S. began food airdrops over the weekend for those affected by the war.

U.S. planes started airdropping food and aid in Gaza over the weekend.

ABC News’ Tom Soufi-Burridge reports on the latest developments in the war between Israel and Hamas.

Kamala Harris spoke Sunday in Selma, Alabama, to mark the 59th anniversary of "Bloody Sunday," a milestone moment in the civil rights movement

Vice President Kamala Harris is expected to join marchers to mark the 59th anniversary of Bloody Sunday in Selma, Alabama, as part of a push to increase voter participation.

The White House meeting comes amid her tour promoting reproductive freedom.

Vice President Kamala Harris on Tuesday assembled voting rights leaders to reiterate the White House's support for the issue

Vice President Kamala Harris met with Ukrainian President Volodymyr Zelensky at the Munich Security Conference, making the case for additional U.S. military aid for Ukraine.

Vice President Kamala Harris reacted to Alexei Navalny’s death while speaking at the Munich Security Conference.

It is Harris' third trip to the conference reassuring foreign allies that US will continue to support them.

The White House is firing back after special counsel Robert Hur's harsh report recommending no charges against Biden but casting doubt on his mental acuity.

The protests continued when the president's motorcade was greeted outside the rally site by dozens of demonstrators.

They disrupted his major 2024 event with chants of "Genocide Joe."

President Biden and VP Harris made their first joint appearance in Virginia, kicking off their 2024 campaign season.