Former President Barack Obama has also endorsed Vice President Harris.
Vice President Kamala Harris wrapped up what has been a whirlwind week in the presidential race with her campaign saying Sunday it has raised more than $200 million in less than a week.
On Thursday night, Harris met with Israeli Prime Minister Benjamin Netanyahu and took the lead in addressing the public about their discussions.
Harris has secured commitments from enough delegates to become the presumptive nominee if they all honor their commitment when voting, according to ABC News reporting.
The president touted Harris's work and encouraged Americans to look at her record during the election.
"Vice president Kamala Harris experienced. She's tough, she's capable she's been an incredible partner to me and a leader for our country. now the choice is up to you," he said.
Biden laid out what he wants to focus on for the remainder of his term, including
"I'll continue to lower costs for hardworking families, grow our economy," he said. "I'll keep defending our personal freedoms and our civil rights from the right to vote to the right to choose. I'll keep calling out hate and extremism and make it clear there is no place, no place it's in America for political violence or any violence."
He went on to say he will continue speaking out against gun violence, working on his Cancer Moonshot initiative and calling for reforms to the Supreme Court.
But getting any legislation passed in a pivotal election year will be difficult with a split Congress.
During his speech, the president talked about his reflecting on saving democracy and his bid for a second term.
Ultimately he decided it was in the best interest to end his campaign.
"Nothing can come in the way of saving our democracy, that includes personal ambition. So I've decided the best way forward is the pass the torch to the new generation," he said.
"There is a time and a place for long years of experience in public life. There's also a time and a place for new voices, fresh voices and yes, younger voices. And that time and place is now," he added.
President Biden began his remarks by noting the history of the Oval Office and the men who came before him.
"I revere this office but I love my country more," he said.
"It's been the honor of my life to serve as your president but the defense of democracy, which has a stake, I think is more important than a title."
