Angry? When you're holding all the cards in the game, you're NEVER angry. I'll tell you who's losing sleep right now...(G)rover. He's worse than any lobbyist for big oil or defense, and he's about to be neutered.
The only course for the Repub's would seem to be to pass a bill which reinstates the tax cuts for those below $250k and send it to the Senate. Unless the Dem's won't bring it up in the Senate it will get Repub Senator's vote. Then wait to see what happens.