Here in the Puget Sound area, as soon as you get out of Seattle, you find few Hillary signs/bumper stickers compared to the old and fading Obama bumper-stickers. Not evidence of anything but I think it is interesting.
In upstate NY, there were quite a few Bernie bumper stickers, although not overwhelming.
There were fewer Hillary bumper stickers earlier in the year, but they've disappeared for some reason. I haven't seen a Hillary bumper sticker in days, anywhere. There's no question that people have removed them.
I do see some Trump bumper stickers, but I think people are afraid of vandalism.
A lot of Trump signs in farm country.