Per the Wall Street Journal, there is a split on what to do after the primaries on Tuesday:
A split is emerging inside the Bernie Sanders campaign over whether the senator should stand down after Tuesday’s election contests and unite behind Democratic front-runner Hillary Clinton, or take the fight all the way to the July party convention and try to pry the nomination from her.
One camp might be dubbed the Sandersistas, the loyalists who helped guide Mr. Sanders’s political ascent in Vermont and the U.S. Congress and are loath to give up a fight that has far surpassed expectations. Another has ties not only to Mr. Sanders but to the broader interests of a Democratic Party pining to beat back the challenge from Republican Donald Trump and make gains in congressional elections.
I think we can all figure out which camp is which. I expect that, barring a wipeout in California on Tuesday, the former camp will prevail. That seems to be Sanders’s inclination at this point.