It can't get any clearer than the words straight from Grover Norquist's speech at CPAC and Mario Piperni's illustration and analysis of Norquist's suggestion that Romney should be the GOP's presidential nominee because he'll do what he's told...

Grover Norquist, in his CPAC speech, revealed exactly why the GOP establishment favors a Romney win.

All we have to do is replace Obama.

H/t: Being Liberal