And so the evolution from hawkish Democrat to Republican attack-dog continues. What Lieberman is doing is what a vice-presidential candidate tends to do: savage the opponent. Or more accurately, what Rove Republican vice-presidential candidates have been trained to do: savage the opponent as a traitor. It's funny but I don't recall him ever being so aggressive when he was Gore's running mate.
"I'm exploiting the maximum of what you can ask a piece of metal to do."