Bernie Sanders tells supporters in Vermont: “Tonight I tell you with absolute confidence: we’re gonna win the Democratic nomination. And we are going to defeat the most dangerous president in the history of this country.”
Bernie Sanders: "We are not only taking on the corporate establishment, we're taking on the political establishment... You cannot beat Trump win the same old, same old kind of politics."
Sanders is hitting Biden for his past support for the Iraq war, trade deals and Social Security cuts.
Sanders tells supporters he's "cautiously optimistic" he'll win California.
