He gave a rare Oval Office address to the nation, explaining why he dropped out of the presidential race.
During a rare Oval Office address to the nation, President Joe Biden said it's best to pass the "torch to a new generation."
"The defense of democracy is more important than any title," Biden said. "Nothing, nothing can come in the way of saving our democracy. And that includes personal ambition."
Said Biden, "I revere this office, but I love my country more."
In his address, he explained why he dropped out of the presidential race and outlined what he hopes to do in his remaining six months in office.
In the meantime, Vice President Kamala Harris is pushing ahead with campaigning for president days after Biden's decision.
With enough delegates secured to become the presumptive Democratic nominee if they keep to their pledges, Harris has held her first campaign rallies. At his first rally since Biden's announcement, Donald Trump attacked Harris while talking to voters in South Carolina.
Watch the video player below for the president's full remarks.
Click here for a list of the current Democrats who support her, and a few notable figures who haven't yet.
In the hours since President Joe Biden endorsed Vice President Kamala Harris on Sunday afternoon, she has collected $49.6 million in grassroots donations, the campaign said.
More than 45,000 people gathered late Sunday on a Zoom call organized by Win With Black Women to support Vice President Kamala Harris' campaign.
The group said it raised over $1,500,000 in about 100 minutes.
The call was led by the group's founder, Jotaka Eaddy, and included lawyer Star Jones, Rep. Joyce Beatty and Shavon Arline-Bradley, the president and chief executive of National Council of Negro Women. Guests such as actor Jenifer Lewis and Alpha Kappa Alpha Sorority President Danette Anthony Reed chimed in with words of encouragement and wisdom.
Even after 1 a.m. on Monday, people continued trying to join the call, and donations kept pouring in. Zoom lifted the capacity limit to allow more people to join the call.
"Don't you ever lose faith in Black women," said Dr. Johnnetta B. Cole, a former president of Spelman College.
Vice President Kamala Harris on Sunday morning had multiple phone conversations with President Joe Biden before he announced that he would not be seeking reelection and would instead endorse her, according to a source familiar with her schedule.
Surrounded by family and staff at the vice president's residence, Harris spent more than 10 hours placing calls to over 100 party leaders, members of Congress, governors, labor leaders and leaders of advocacy and civil rights organizations. On each of those calls, Harris made clear that she was extremely grateful for the president's endorsement but plans to work hard to earn the Democratic nomination in her own right, the source said.
One of the calls was to her pastor, Amos Brown III, who, along with his wife, prayed over her, according to the source.
The vice president wore a hooded Howard University sweatshirt, workout sweats and sneakers throughout the day. Amid the many calls, she took time to arrange both lunch and dinner for the assembled aides. The menu was salad and sandwiches for lunch and pizza and salad for dinner. Harris' pizza came with anchovies, her go-to topping, the source said.
Democratic National Committee Chair Jamie Harrison and Minyon Moore, the DNC convention chair, just sent members a note, obtained by ABC News, saying guidance on the formal nomination process following President Joe Biden's exit from the race will arrive "in the coming days."
"While this situation is unprecedented, the DNC is ready to undertake a transparent and orderly process to move forward as a united Democratic Party and select a nominee," they said in their message. "This process will be governed by rules and procedures of our Party, and we know that all of you are ready to take your responsibility seriously to swiftly nominate a candidate who will defeat Donald Trump in November. In the coming days, you will hear more from us on the next steps to formally select our nominee. As we move forward, our values as Democrats will remain the same - protecting our basic freedoms, fighting for working families, and saving our democracy from the threat of dictatorship."
The pair said the DNC will "honor" Biden's "legacy with a firm commitment to nominating and electing a Democratic president this November" who will continue the strides he has made as president.
As of Friday, Democrats planned to continue their virtual nomination process to ensure that Biden and Harris were on the ballot in all 50 states. That was, of course, before Biden made his announcement on Sunday afternoon.
