Bernie Sanders is doing it right now. He’s making a full-throated endorsement of Hillary Clinton, and talking about how much more important it is to elect her than it is to allow Trump to win. It’s a good speech, and I’m glad he’s making it.
And I really, really hope that the Bern Outs I know are paying close attention, and will vote for Hillary in November. I know it sounds like a cliche at this point, but it really is true that a vote for anyone else amounts to a vote for Trump.