Spare us the misleading lecture. There are cases that are 9-0, 8-1, etc., and every now and then you’ll see a 5-4 with an unusual lineup, but on the big, divisive cases that matter the most the leftist four are almost always together. Only a question of which “conservative” vote will cross over and join them. It was that way when Stevens and Souter were still on the Court and it’s that way now with Sotomayor and Kagan.
And to you - please educate yourself.