Oeno...I see that no one has yet taken the bait.

So, what's your take on the premise of the cartoon?

There's more than one premise to the strip. The main one is that Justice Scalia has his own firm opinions on what constitutes original intent, one of the pillars of constitutional jurisprudence.
Some say that he was pissed off by not being elevated to chief justice upon Renquist's death. He does tend to 5 o'clock shadow, making him look sinister, much like Nixon. The strip makes him out to be a bully, but I think the cartoonist did so for comic effect.