Morning Joe was merciless this morning. They played a tape of Trump talking at some Republican fund raiser, explaining how he really ran as a democrat and went point by point on what he supposedly was for, oh, and of course he said Lamb said good things about him. Well, they went point by point cutting away to what Lamb's positions were from his own mouth on the campaign trail. The only thing that they haven't lied about what his positions were was that he does not like Pelosi.
It's insidious, isn't it? Fox operates on the principle that their viewers will believe anything if it's put to them often enough in the right way. I mean, damned near anything, including blatant lies. It's like this-
http://www.bbc.com/future/story/20161026-how-liars-create-the-illusion-of-truth
When it comes to a program like Morning Joe they get to control the conversation entirely. Punch out the script over & over again to achieve the desired result.
Trump really is a problem for them because he pushes it too far to be sustainable. That's why they initially opposed him.