It certainly had nothing on the 1954 attack on The Capitol, by Puerto Rican terrorists.
Funny how that incident just went right down the memory hole.
How about a socialist gunman that tries to murder Republican legislators, that wanted to play baseball or softball.
Or democrat/communist nutjobs that bombed the Senate in 1983, because of the “invasion of Grenada.” The commiecrats had already set bombs on April 26,1983 & August 18,1983.
Leftwing ideologues are mostly peaceful 1st Amendment protesters. (Sarcasm)