Even though it's The Best Show Ever (aka "The West Wing"), sometimes the best of the best (aka Aaron Sorkin) slip up. Now, I may have insider information here, but the phrase "preaching to the choir" is not accurate. My father, a preacher, has a choir, and about 50% of them are hired guns. They're not necessarily believers. Except in money. The correct phrase is "preaching to the converted." Amaze your friends. Wow your neighbors. Impress your girlfriend. Now you know, and knowing is half the battle. Now, go get 'em, tiger!