I forgot about that one. Still, that's not much for 250 years.

There was also a guy shot.... not on the floor but in the halls of Congress... his blood still stains the stairs lol 

https://history.house.gov/Historical-Highlights/1851-1900/The-death-of-Congressman-William-Taulbee-on-the-steps-of-the-U-S--Capitol/#:~:text=%E2%80%9CFor%20the%20first%20time%20in,died%20on%20March%2011%2C%201890.

Cje95

Politics_And_Law

Chaos in Serbian Parliament - Smoke Grenades & Tear Gas Thrown By Politicians

For some reason our Congress has always been pretty tame by international standards. There was basically that one cane attack two centuries ago and nothing else of particular interest.