Now Third Party Watch is passing along the news -- rumor? -- that Alan Keyes is planning to bolt the GOP for the Constitution Party on Tax Day. Keyes's 2008 presidential "campaign" has been such an unmitigated disaster that his Illinois Senate race against Barack Obama looks like a serious effort by comparison. But he would still be the biggest name candidate the Constitution Party has ever attracted. He won't attract the same level of support as Bob Barr or Ron Paul would running on the Libertarian Party line, but he ought to get more votes than Howard Phillips or Michael Peroutka.