Claiming hostility on the part of Fox is a pretty canny way to crack the whip on them to make them even Trumpier. After all, if Fox can't keep the red hats in tow, where do they go as a network? They're never going to go left or middle, and there is no longer any substantial moderate Republican base to cater to. Their only choice is tack harder right, and again, a browbeating by Trump and his flying monkeys is probably the surest way to get them to do that.