Rush is correct. I would also add that the Rhinos are too busy thinking about 2008. With no heir apparent for the Republicans, it is a free for all and Bush has made himself a lame duck.
Any Republican in the Senate that is even thinking of running for President better be on board. The base will not vote for somone who jumped ship on this issue.
If Specter bolts. Sen Cornyn should move to remove him as Chair.
Lottt was replaced because he was an ineffectual leader and he is continueing to prove that every year. He came up with the phrase "nuclear option" and now he may stab Frist and Bush in the back. If a leader is effective his people will support him. See Tom DeLay in the House.