Blood in the water
The reverse is happening in the Democratic party. All the best candidates are stepping up because they smell blood in the water.
Why's it happening? "There's one obvious reason why Republican candidates aren't listening to the White House and the national party: For the first time, Mr. Bush is an unpopular president."
Those are the words of David Wiegel who, incidentally, has a blog which can be found here. The article is here.