Its somewhat of a mystery to me as well. But it happened after W got into office. Something similar happened with Howard Fineman, Chrissy Matthews and Norah O'Donnell at NBC. They went from being somewhat detached democrats to just open antagonists to all things GOP. George Will isn't quite in their camp but he is a reliable ally for them since they rarely disagree anymore. Will is more of a Goldwater republican than a Reagan republican.
Well, W makes me mad too, but he's better than the alternative.
susie