You've never explained what makes it a witch hunt. Is Trump innocent of being a hypocrite (eg criticising Obama for going golfing, while playing golf even more himself); or of flip-flopping his positions all the time; or of downright lying; or of being so obsessed with his election victories that he can barely shut up about them; or of being arrogant and boastful and pompous; or of being incoherent, vague, and barely capable of stringing a sentence together (to be fair, something that he has owned up to himself once or twice)?
Each one of these criticisms of Trump the hypocritical, dishonest, self-obsessed buffoon it's easy to find half a dozen examples for; since that is what I personally am accusing him of, and the evidence to support each accusation is out there, it is hardly a "witch-hunt". Victims of a witch hunt are innocent of what they've been accused of.
I leave the Russia thing to one side -- at the moment, the evidence that Trump personally is involved is scant, and while it's clear that Trump admires Putin perhaps more than any other world leader, I don't think there's any reason yet to suspect collusion, although the investigations are ongoing and getting closer and closer to Trump personally.