When it comes to politics, the public relations whiz who suggested there is no such thing as bad publicity is as wrong as the cynic who thinks voters have short memories. Which, in a nutshell, is why in Republican-leaning Florida, an icon of the GOP faces a very uphill fight this November to claim a U.S. Senate seat that would be far more attainable were her name not Katherine Harris. Ms. Harris, you remember, was Florida's secretary of state -- the official in charge of voting returns who helped break the 2000 postelection stalemate and make W. president. She became...