The only people hurting republican chances are republicans themselves.
This is what the democrats did to the republicans in August of 2012.
http://www.youtube.com/watch?v=i-E0ArYhwc4
So he is no great republican.
He is a greedy and power hungry fool that does not have the class or decency to quit.
He is responsible for this mess and only he can shut it down.
But he is a cry baby and delusional