Precisely. This is an argument over who decides where the boundaries of authority recognized in 10A lie. That only one party to a dispute over those boundaries is permited to assert their power is nonsense and would be recognized as such by the Framers who so rightly valued checks and balances. Nullification is the States side of the 10A argument. The 17th Amendment, by eliminating the States' direct voice in the Federal government, has made nullification even more important.
I keep meaning to make up some tee shirts.
