Mae Beavers and someone from something called the Tennessee Commission on the Bill of Rights think the 10th Amendment gives states the power of nullification:
She understands that lawyers believe the Supreme Court is the “ultimate arbitrator” of constitutionality, Beavers said, and that has allowed justices “setting themselves up as a dictator” and “generation after generation, we have just accepted that.”
But that is wrong, she said, and the 10th Amendment lets states decide what laws are constitutional and which can be ignored or nullified.
Brian Kelsey, who replaced Beavers as chair of Senate Judiciary, goes on to suggest he's going to stop this Nullification Crisis and then compares himself to Andrew Jackson.
Here's the 10th Amendment:
The powers not delegated to the United States by the Constitution, nor prohibited by it to the States, are reserved to the States respectively, or to the people.
The amendment states but a truism that all is retained which has not been surrendered. There is nothing in the history of its adoption to suggest that it was more than declaratory of the relationship between the national and state governments as it had been established by the Constitution before the amendment or that its purpose was other than to allay fears that the new national government might seek to exercise powers not granted, and that the states might not be able to exercise fully their reserved powers.