it reminds me of a comment pat moynihan made about malcolm wallach. >> remind of malcolm wallach. >> was a senator by wyoming. >> by the way, in the future when i say remind me, it means i don't have a clue. just so you know. >> i thought you knew everything and had made that comment to inform the audience as to who malcolm wallach was. joe biden is a good talker for humor because he talks so much. there's a picture of joe biden and me over here. you know how much it costs to buy a seat in the united states senate? $30 million. so when you pay $30 million for a seat, you like to sit in it. >> specter, the former prosecutor, studied his comedy performances with a critical eye taking careful notes on which punch lines worked and which fell flat. >> you're clearly tuned in to the audience because you were pausing. >> there's a cadence to it. and the audience gets into the cadence. when you pause, they laugh -- if you pause, they laugh again. sometimes they laugh automatically. >> reporter: in the end between his long senate career and his short but determined effort at stand-up comedy,