The way I have heard them explain it, they are trying to play the long game. They're hoping Trump destroys the Republican party (again) so that they can court even more white suburbanites (again). Didn't work before, but will now for...nebulous reasons.
It also gives them a convenient scapegoat AND a reason to get more racist
of course, it's also a 'donor class v voter class' thing
I strongly disagree with any criticism of people based on who they 
for.
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The way I have heard them explain it, they are trying to play the long game. They're hoping Trump destroys the Republican party (again) so that they can court even more white suburbanites (again). Didn't work before, but will now for...nebulous reasons.
It also gives them a convenient scapegoat AND a reason to get more racist
of course, it's also a 'donor class v voter class' thing