It's being billed as a key test of the Tea Party movement's insurrection against the GOP Establishment. And, the principals couldn't be more colorfully cast. Today Kentucky U.S. Senate Republican primary pits Rand Paul, son and political acolyte of U.S. Rep. Ron Paul (R-TX), the "libertarian-ish" surprise sensation of Election 2008, against the Secretary of the Bluegrass State, Trey Grayson, dutiful Kentucky Grand Old Party stalwart, with U.S. Read More