The shooting at a Republican congressional baseball practice Wednesday morning is not the first time that members of Congress have been the targets of a politically motivated violent attack. Here is a list of historical precedents for the attack in Virginia.
March 1, 1954
‘Viva Puerto Rico libre’
Four Puerto Rican nationalists entered the U.S. Capitol with automatic pistols and began shooting from an upstairs spectators’ gallery onto the crowded floor of the House, firing nearly 30 shots. During the shooting, the gunmen unfurled a Puerto Rican flag, and