This was like a two-legged cup tie where it was a dour 0-0 draw, but Clinton won the first leg 6-0, so it really doesn't matter. Trump is toast, and as a bonus, he'll sink many of the rest of the GOP candidates for the House and Senate.
Many of the GOP seats are in super safe districts so even if Trump announced he was a secret member of IS and intends to impose sharia, those districts would still go Republican.
Kinda? A lot of the Republican gerrymandering in blue states was to give Republicans 55/45 splits and to concentrate Democrats in 80/20 splits. If Trump is as divisive on election day as it appears he is now, those 55/45 splits could be overcome by Democrats.
I'm not sure I'm assuming that? With the direction this election is going there is going to be a litmus test among Republicans on whether the politician supports Trump or is opposed to him. For politicians that support Trump, is someone that opposes Trump really going to vote for them? For politicians that opposes Trump, is someone that supports Trump really going to vote for them? I'm mostly thinking there are going to be a number of blank sections on the ballot.
People are going still to vote for their Senators, representatives and other officials on reasons other than their level of support of Trump. Of course those running in most deep red areas will find an advantage in supporting Trump while those in purple area will find an advantage in soft pedaling their support or even claiming non-support of Trump.