The underlying truth here is that if Fox News conducted itself as an ethical news outlet, these kinds of messy spats and hurt feelings wouldn't be an issue. Instead, Fox is often run as a RNC marketing arm, or a GOP clubhouse, raising expectations from Republicans in terms of how they'll be treated.
FOX and the Republican elites have been playing the long game in the shadows. They thought they had their men in Mitt Romney and Jeb Bush. What they didn't foresee was a celebrity billionaire with nothing to lose. Trump was also playing the long-game except right out in the open for all to see. And he is the one who might very well succeed.
Donald Trump, like no other candidate can, embodies the right wing's rapid descent into mindlessness and their embrace of know-nothingism. With Trump, there is nothing there besides the huge eponymous banner announcing "Trump" that appears on all his possessions, a bluster, and a golden combover seemingly forever frozen in place.
Talk about a circular right-wing firing squad: Donald Trump; the marginalia at Breitbart Snooze; RedState's Erick Erikson & Co.; Sarah Palin; and her eldest daughter (aka Palin-Lite), are all going after each other in the ultra-rightwing blogosphere, and it's tempting to just sit back and watch the fur fly.