|Agrees with co-partisans
|Disagrees with co-partisans
|Agrees with counter-partisans
|Bridge-builders: Kennedy, Roberts
|Disagrees with counter-partisans
|Loyalists: Kagan, Ginsburg, Breyer, Sotomayor, Scalia, Alito
Something like this. Perhaps, Justice Stevens could be classified as a traitor (to his party–he was appointed by
Nixon Ford but in later years voted with the Democratic appointees–which is not the same thing as saying that he was a bad justice, of course). Among the loyalists, Scalia and Alito vote in a less consistently partisan manner than the other four.