There's a potential pothole in U.S. Sen. Bill Frist's road to the White House: He's a confessed kitty killer.
He fessed up in his 1989 book, "Transplant," to adopting cats from shelters when he was in medical school, treating them like pets for a while, and then using them in his research experiments. Maybe in hindsight, Trent Lott should have seen it coming.