No presidents going to be investigated for treason or anything else for that matter. Because no current president wants to create some kind of Precedence of a president being charged. They’ll protect themselves and all the other presidents over doing what’s right for the public. Sorry.
It’s congress’s job. They won’t investigate either.
With any other president I would agree with you. I can’t, however, imagine President Trump making decisions based on fear. It would be out of sync with who he is.
We’ve been conditioned to expect spinelessness from Republicans. This one is manifestly different.