"Oh, Hillary is not a PERFECT candidate, I'm going to punish the Democratic party because of it and vote for Trump".
Or, one of my favorites,
"Those jerks, they totally passed on Berny! I'm going to vote for Trump!"
Idiots that vote against their (and everyone else's) own interests just because they can't have THE PERFECT candidate is why things are such a mess right now. Always letting PERFECT get in the way of BETTER.