Barring a miracle, South Carolina will bury the last libertarian-leaning candidate of '08 COLUMBIA, SC—One by one, the great libertarian hopes of the 2008 presidential cycle have been dashed. New Mexico Governor Bill Richardson was touted—some might say over-hyped—as an example of a Western "libertarian Democrat" for his friendliness to gun rights, for signing a medical marijuana law, and for a tax-cutting record that earned him a B on the Cato Institute's Fiscal Policy Report Card. He dropped out of the race after failing to break the six percent mark in Iowa or New Hampshire. At his final debate appearance...