Biden also has former Massachusetts Gov. Deval Patrick in his camp. New Jersey Senator Cory Booker is still sitting on the fence.
His back-to-back wins in South Carolina and on Super Tuesday has turned his campaign around.
A lot of things changed. Bernie Sanders lost his delegate lead as Joe Biden’s resurgence swamped most of the primaries of Tuesday.
The strength of Biden’s recovery is unprecedented even in a political system where changes come fast and furious.