Literally a states’ convention clause built into Article V [1]. That lets states directly amend the Constitution. No Congress or Court required. (After that, we get into the grey area between law and power.)
[1] https://en.wikipedia.org/wiki/Article_Five_of_the_United_Sta...
States can withhold sending of collected fuel tax to feds.
States can remove exception that appears to be in State laws which allows IRS to file property lien without a court ruling.
States can mint their own gold or silver backed money.
States attorney general can start enforcing anti-monopoly laws against the medical cartels.
Unfortunately for civil rights and privacy, Americans no longer care.
https://cosaction-prod.s3.amazonaws.com/public/pocket_guide_...
Wouldn't make any difference since the spying is part of a large defence establishment which is extremely popular.