“I ask all Americans, I ask all Democrats, I ask all independents, I ask many Republicans, to come together in this campaign to support your candidacy, which I approve of,” said Sanders.
The support is a crucial development for Biden, who must bridge the ideological divide of the Democratic Party to unite voters against Republican President Donald Trump in the fall.
Biden and Sanders, a progressive leader, clashed throughout elementary school over policy issues such as universal health care.
The approval contrasts with the protracted 2016 fight between Sanders and Hillary Clinton, who became the candidate that year. Sanders approved of Clinton, but only after the end of an extended nomination fight and in the midst of a fierce battle on the Democratic platform that spanned the summer convention.
Sanders did not immediately indicate on Monday whether he would continue to fight for delegates at state conventions across the country or whether he would simply use his new alliance with Biden to influence the candidate and the political list he will present to voters.
Appearing on a split screen with Biden, Sanders said there was “no big secret that you and I have our differences.”
But he cited work in progress between the two camps on several political issues as the reason for the approval. And he said the biggest priority was to defeat Trump.
“We have to make Trump a president for a term,” said Sanders. “I will do everything I can to get there.” “