Trump made a revealing comment that could explain why he hasn't fired Mueller

“There is no collusion. And even these committees that have been set up. If you look at what’s going on — and in fact, what it’s done is, it’s really angered the base and made the base stronger. My base is stronger than it’s ever been. Great congressmen, in particular, some of the congressmen have been unbelievable in pointing out what a witch hunt the whole thing is. So, I think it’s been proven that there is no collusion.”