Those delegates are then pledged to candidates on the basis of results in primaries and caucuses. With Sen. Bernie Sanders’s departure from the race April 8, Biden became the party’s ...

But over the past two weeks, sources say, Biden's campaign has been working the phones to check in with pledged delegates whose ... longtime supporter of Bernie Sanders, recalls saying at the ...

Biden has become the party’s clear front-runner this month, leading the delegate count over Sanders by a 1,181-885 margin. A candidate needs at least 1,991 delegates to win the Democratic Party ...