Anderson Cooper very rarely asks a Democrat a tough question. And the odds of him doing it are directly affected by the amount of power that Democrat has. In other words, he's far more likely to ask some freshman liberal congresswoman from Minnesota a tough question than he is a liberal Senator from NY, and he'll never ask President Stompyfeet a real tough question without vetting it with the President's people first so the president can "look sharp answering an unexpectedly tough question from the always scrappy Anderson Cooper!"
“President Stompyfeet.”
I’m going to steal that ;-)