Of all the candidates, only Bernie has a positive rating from the public.

Nate Silver - We’ve got an unpopular set of presidential candidates this year– Bernie Sanders is the only candidate in either party with a net-positive favorability rating — but Trump is the most unpopular of all. His favorability rating is 33 percent, as compared with an unfavorable rating of 58 percent, for a net rating of -25 percentage points. By comparison Hillary Clinton, whose favorability ratings are notoriously poor, has a 42 percent favorable rating against a 50 percent unfavorable rating, for a net of -8 points. Those are bad numbers, but nowhere near as bad as Trump’s.