Mysteries of the Senate, bathtubs and beyond.

Politicians and pundits are fond of saying that Washington has never been more polarized and that the Senate in particular may never recover from hyper-partisanship and rule-bending. But it is assistant Senate historian Daniel S. Holt's job to remind us all that Senate disputes could result in pistols at dawn instead of dueling tweets.  Learn more about your ad choices. Visit megaphone.fm/adchoices