People don't really understand the difference between American Constitional Society ("ACS") membership judges with Federalist Society judges ("Fed Soc.").
Another way of putting it are the judges who favor a "living breathing" (i.e., "Weathervane" Constitution) with those who favor a Constitution allowing for some predictability and consistency.
So here's a little story:
---A state passes a law that basically says, "The only candy people may bring to any public library is a single lollipop."
---Someone brings a Snickers bar into a library and is fined. He contests the law as unconstitutional (whatever, it's an example, no nitpicking!). :-)
--The Fed Soc Judge looks at the case and says, "The law says Lollipops only. You brought a Snickers bar. You're screwed."
--The ACS Judge says, "Well, I --personally-- like candy, and I don't like this law, and maybe the statute was written before Snickers bars existed!"
--The Fed Soc Judge says, "Um, if the law was written long ago, then it's for the legislature to write an amendment allowing for other kinds of candy."
--The ACS Judge says, "No! I --LIKE-- candy! Lollipops are candy, and so are Snickers bars! Good enough for me! He didn't violate the law!"
5 years later . . .
--The ACS Judge says, "Well, another guy was convicted, but this time with a milkshake. Well, we DID have that precedent allowing for Snickers bars, when the statute said "lollipops only." AND . . . milkshakes have sugar in them, . . . so . . .
10 years later . . .
--"This public library / Dairy Queen substation is open 24 hours. Have fun taking BMs, all you homeless people!"
That's the difference.
Fed. Soc. Judges do what the law SAYS. ACS Judges interpret the law the way they PERSONALLY think it should be, to hell with the statute. And to hell with letting a legislature fix things.
A real life example: Judge Pregerson of the 9th Circuit, often honored by the ACS, has specifically stated that he will NOT follow immigration law and statutes because he doesn't agree with it.
Note: He's --a FEDERAL JUDGE-- who says he won't follow FEDERAL LAW.
That's the the kind of judge the ACS honors.
The fact is, Scalia at least has a point. And I have encountered numerous young lawyers who sputter at Court decisions where an ACS-type judge has just contorted themselves around a statute to get to their personal preferences.
The marketplace of ideas is actually converting followers to Scalia's way of thinking, because when your legal center is a weathervane, it can get a little exhausing.