Because they're afraid to play "dirty".
Maybe. And maybe they NEVER say anything about Democrats because they are "dirty" too. Remember what Hastert's first reaction to Jefferson and the FBI wanting to search his office was? That certainly made a lasting impression on me.
Well, they better grow some one of these days (soon) or this country is going to go to he!! in a hand basket. If they had fought back last year we wouldn't be suffering fools like we are now with the dims in charge.