Historical records confirm that the United States Capitol building was the target of two distinct bombings by left-wing extremist groups during the 1970s and 1980s. These incidents, which caused significant damage but no fatalities, are often cited in discussions regarding the history of domestic political violence in the U.S., as highlighted by a recent social media post stating, > "Leftists were bombing the US Capitol in the 70s and 80s... Just in case you were wondering how far they'll go."
The first incident occurred on March 1, 1971, when the radical anti-war group Weather Underground detonated a bomb in a men's restroom on the Senate side of the Capitol. The group, identifying with communist ideologies, claimed responsibility for the attack, stating it was in protest of the U.S. invasion of Laos. The explosion caused an estimated $300,000 in damage, but no one was injured due to an advance warning call.
More than a decade later, on November 7, 1983, the May 19th Communist Organization (M19), a self-described "revolutionary anti-imperialist" group, carried out another bombing at the Capitol. This attack, which damaged the north wing of the building, was reportedly in protest of U.S. military actions in Grenada and Lebanon. Similar to the 1971 incident, a warning was issued, preventing any casualties.
Both the Weather Underground and M19 were characterized by their radical left-wing ideologies and opposition to U.S. foreign policy and perceived imperialist actions. Their tactics often involved property destruction through bombings, with a consistent pattern of issuing warnings to avoid loss of life. These groups emerged from the turbulent political climate of their respective eras, marked by intense social and anti-war movements.
These historical events underscore a period of heightened domestic terrorism in the United States, where political grievances sometimes escalated into violent acts against government symbols. The bombings at the U.S. Capitol in the 1970s and 1980s remain significant examples of politically motivated attacks on federal institutions.
