Cold Day in D.C.

Hey, listen up, buttercup. The joke is that politicians are usually greedy and only care about lining their own pockets with money. So, when it's so cold that a politician has his hands in his own pockets, it means he's actually keeping his hands off everyone else's money for once, because, you know, he is freezing his acorns off. It is very cold in Washington D.C., which is located on the north side of the Potomac River.