Its happened.. On this date, Representative Roger Griswold of Connecticut attacked Representative Mattheew Lyon of Vermont on the House Floor (then located in Philadelphia’s Congress Hall). Incensed that the House failed to expel Lyon for spitting tobacco juice at him on January 30, 1798, Griswold sought justice against the “gross indecency” by caning Lyon on the House Floor.
Joe Biden might have integrity issues too. His son's business dealing in Ukraine when Joe was in charge of Ukrainian affairs will be dug out again if he gets elected. The next time it will be in depth and GOP will push for his impeachment. https://www.bbc.com/news/election-us-2020-54268887
Yeah, things have come a long way since sword duels in 1798. I think you might be getting ahead of yourself here. Violence on the house floor might be a forgone conclusion at some point in the future, but we're not even close to that yet. Can you imagine Nadler in a fight?