A good read from VT Campaign for Liberty:
First there were “Truthers” and then “Birthers” and now there are “Tenthers.” To be accurate, the “Tenthers” actually came first, since this newly-coined term (which is supposed to denote a “fringe” position and is therefore derogatory) refers to those who believe the tenth amendment to the Constitution actually means what it says, that powers not delegated to the federal government are reserved to the states. By this definition today’s “Tenthers” may consider themselves in good company since we can assume many, if not all, of the founders themselves agreed with this concept.