Kevin, thanks for the reply and clearing up the issue. For the record, I was just trying to step into the Nationalist’s shoes and make an argument against the compact theory.
You are right to make the point that an invalid compact does not imply a National government.
In fact, using what you have said above, a conservative could argue the if there is ANY legitimate union at all, then it is one that is one formed by a compact among the several states. But if there is not THAT TYPE of union, then the Feds don’t have any legitimate power since there is NO UNION AT ALL. Good stuff, thanks for the interaction.