Well, as anecdotal evidence, in my area of Pennsylvania I’ve seen a number of Trump signs - a couple very large. Not one Hillary sign.
And I don’t live in a particularly conservative area - in fact, slightly more people voted in the Democrat primaries than in the Republican primaries.
I have not seen even one sign where I live. I did see one bumper sticker a wk ago. That’s it. Folks just keeping thoughts to themselves.