> Roberts has generally been considered the swing vote in cases where he needs to sort of fall-on-his-sword to preserve the non-partisan appearance of the court.
I think this is a fairly strained interpretation to try to defend the idea that the court is iron-locked into the "liberal 4" + "conservative 4" + Kennedy divide (casting a different divide as Roberts trying to create an illusion about the court), and it falls down when you have high profile cases like the today's Hollingsworth v. Perry [1] where the majority is made up of Roberts, Scalia, Ginsberg, Breyer, and Kagan.
I think this is a fairly strained interpretation to try to defend the idea that the court is iron-locked into the "liberal 4" + "conservative 4" + Kennedy divide (casting a different divide as Roberts trying to create an illusion about the court), and it falls down when you have high profile cases like the today's Hollingsworth v. Perry [1] where the majority is made up of Roberts, Scalia, Ginsberg, Breyer, and Kagan.
[1] http://www.supremecourt.gov/opinions/12pdf/12-144_8ok0.pdf