335clone
Living the dream
If he were serious about doing everything in his power to keep Trump out of the White House, he'd have dropped out of the race and be doing his best to talk Clinton up to his supporters.
How so?
If his main objective is to ensure a Trump loss, his best bet is to stay in the game. Lets be clear, it's Clinton that needs Sanders supporters, and she would do well to start courting them now. It isn't Bernie's job to pimp Hil to his supporters (at least not before she makes some major effort to woo them herself).