MEGAN MCARDLE ON OBAMA’S DECISION NOT TO DEFEND DOMA: “Maybe it was always thus, but it seems to me that both parties are increasingly resorting to procedural tricks rather than politics, and it worries me. Maybe this means that our political system is broken, maybe it means that the parties are getting increasingly ruthless–or maybe I’m overestimating the extent of the change. But as I say, it worries me. I think it would be disastrous on a whole lot of levels if the GOP managed to undo ObamaCare with this sort of thing. But if the precedent stands, I think you can expect them to try it the next time they have the presidency.”