Nullification, the constitutional theory that states can block enforcement of federal laws they find objectionable, was crackpot from the start and hasn't been seriously entertained anywhere in the county since the Civil War (with the exception of feigned attempts in the South during the Civil Right Era). Nullification, to give you a thumbnail idea, is sort of like secession a la carte
But Jim DeMint and Michelle Bachmann are now saying that Tea Party-loving states around the country should band together to block enforcement or implementation of health care reform
if the federal government passes it.
Should be interesting. Late Update
: As someone who spent a good deal of time studying the Nullification Crisis
, I'm chagrined that I failed to note that Sen. DeMint (R) is himself from South Carolina, the cradle of 'nullification' and the original seedbed of the treason that threatened to flair up in 1833 and finally did in 1861.