@blatham,
Even Trump’s mental exertion alone fighting off a primary challenger would be beneficial to his general opponent. The money he’d have to spend would be less for the general. The emotional kick in the ass actually having a primary challenger as an incumbent would make him crazy. The newsies stating daily how this has happened only a few times in history...
Any **** this challenger can say out loud on a stage to him and about him will chip away at Trump.
I don’t even know the Walsh guy at all, but the positives for just going through the motions of a primary for a sitting president will deliver a weakened Trump to the general.