Nobody seems sure just what is with Joe Lieberman but theories abound on how he turned from a liberal into a health care reform hijacker, writes Gail Collins. He may still be sour about not winning the 2004 presidential race—when he was also "bitten by either a rabid muskrat or a vampire disguised as a moose," Collins notes in the New York Times.
Whatever his problem is, Lieberman is a good example of how not to act when you're a failed national candidate, Collins writes. "You can move on, and try to make yourself useful," like John Kerry and Al Gore managed to do. Or, like Lieberman and John McCain—who now opposes controlling Medicare costs—"you can work out barely suppressed rage by attacking things that you used to be for." (Read more John Kerry stories.)