We've all heard Rethugs and their tea bagger component (i.e., their far right base) constantly yelling about the subversion of the U.S. Constitution by the "socialist" Obama Administration. Whether it's health insurance reform or the stimulus, the wingers would have us believe that they are the last line of defense for a Constitution that's under attack. Well, they have met the enemy, and they is them.
There are calls within the Rethuglican ranks for a repeal of parts of the 14th Amendment to the Constitution, which guarantees equal protection under the law and establishes standards for citizenship. The glaring irony is that it was enacted following the Civil War by Republicans as part of post-Civil War amendments designed to reverse the effects of slavery. E. J. Dionne has the complete story, and it's well worth reading. It demonstrates just how radically right-wing the modern Rethug party has become.