Quote Originally Posted by Warriorbird View Post
Judicial philosophy/politics I imagine.
Correct. Way more Dems than Republicans on the full bench for the DC circuit. (7-4, I think. Used to be 4-4, which is why the Republicans attempted to eliminate the last three seats before Obama could appoint people to them.)

I would recommend reading the Fourth Circuit decision for pretty strong reasoning as to why the provision should be upheld.