Hillary Clinton is a really good example of somebody who the Republicans destroyed by ranking on her every chance that they had (and they had a lot of chances). Her solution to that problem was to do absolutely nothing and stand above it all. She did, and they did, and they won that battle. The Republicans have proven, several times, that they can destroy people, especially people who won't really fight back. I remember when they went after John Kerry and wrecked him as well (and he was, I think, a real war hero in VietNam). They are VERY good at that!
I have also read that Trump has been losing true believers. Not a lot, but some. One thing I am sure of and that is that he continues to have a LOT of true believers!
I just wish there were some qualifications that presidential candidates must have to run. I also realize that's just never gonna happen. It would, however, be pretty interesting if such a thing was out there. THEN we would hear some very interesting claims which just might take down the entire psychological camp.
