Former U.S. Sen. Bob Dole Maintains Support for Donald Trump
http://www.freerepublic.com/focus/f-news/3478218/posts
They rigged the system to the point where they assumed that they would never have to reciprocate. Now that they do have to reciprocate, they're throwing a tantrum and either openly or covertly supporting Hillary.
Establishment Republicans are just using Trump's locker room talk as an excuse to dump him - their real reason for opposing Trump is simply the fact that voters rather than party hacks were responsible for his nomination. Since they can't come out and openly express their contempt for voters, feigning prissy outrage over dirty words gives them the cover that they need.
Among many other things, this election will decide whether a candidate can succeed without the support (and in fact, with opposition by) the party's political machine. A Trump victory will not only be a victory over Clinton-style liberalism, but a victory for the notion that voters rather than party hacks should decide the outcomes of elections.