Very good point about the people up for re-election in Congress. I actually just read an article earlier this week talking about that possibility. That is Sanders wins the nomination -- which looks pretty likely, especially as the states voting get less white... That he (Sanders) could very well end up costing Democrats the House of Rep and there would be about 0 chance of claiming the Senate. Very , very interesting stuff.
I've been changing my mind on this a lot.. The thought of a progressive vs a moderate taking the nomination. At some points during this process, I felt like it would help to have the progressive. Then I would change my mind later and think that was crazy.. then I was reading all these stories about Warren buttering up to the DNC elites so I was back on the progressive train.. and now that Pete looks like the clear #2 after two votes (again, still a lot can change)... I am beginning to think a progressive nominee is good news for Trump. I think I am gonna stick here though.
But, also a good point by you... It might not even matter, because the Bernie people will probably riot if he loses (the nomination). lol