In a joint livestream on Monday, Senator Bernie Sanders officially endorsed former vice-president Joe Biden for president. Sanders said, “Today, I am asking all Americans, I’m asking every Democrat, I’m asking every independent, I’m asking a lot of Republicans, to come together in this campaign to support your candidacy, to make certain that we defeat somebody who I believe — and I’m speaking just for myself now — is the most dangerous president in the modern history of this country.”

The announcement comes days after Sanders suspended his campaign. Though he and Biden disagreed often during the primary debates, the senator was certain to support Biden when his own campaign fell short. Sanders has a good working relationship with Biden, and has always said that he would support the party’s nominee, a position he reaffirmed when he withdrew from the race last week. He congratulated Biden in a statement and said that he would work with the former vice-president “to move our progressive ideas forward.”