The Party for Socialism and Liberation (PSL) is a communist party in the United States. PSL was established in 2004, when its members split from the Workers World Party. The group believes that a socialist revolution is necessary to overthrow capitalism and establish socialism. The organization works toward this end by organizing and participating in local protests, running candidates in elections, and political education favoring a revolutionary socialist vanguard party.

Michael D. Prysner is an American socialist political activist. He is a U.S. Army veteran who served in Iraq as a specialist. His duties in Iraq included ground surveillance, home raids, and interrogation of prisoners. According to Prysner, these experiences led him to take an anti-war stance.