[Lurking Libertarian]

And Valerie Jarrett was quoted as saying "We have two Justices ready to go." How would they rule if one of the conservative justices leaves the Court?

If this issue ever got to the Court, it would rule 9-0 against the enforceability of the compact. There has never been any doubt about what the Compact Clause means.

[Pearls Before Swine]

I hope I never have to find out how a liberal majority Court would rule on this.