evidence: Literature from the antifa movement encourages followers to monitor the activities of white supremacist groups, publicize the personal information of perceived enemies, develop self-defense training regimens and compel outside organizations to cancel any speakers or events with "a fascist bent," according to a 2018 Congressional Research Service report. People associated with antifa have been present for significant demonstrations and counterdemonstrations over the last three years, sometimes involving brawls and property damage. They mobilized against a white supremacist march in Charlottesville, Virginia, in August 2017 and have clashed repeatedly with far-right groups in Portland, Oregon, including at a rally last summer that resulted in arrests and the seizure of shields, poles and other weapons. What role is antifa playing in these demonstrations? Trump and members of his administration have singled out antifa as being responsible for the violence at protests triggered by the killing of George Floyd, a black man who died after a white Minneapolis police officer pressed his knee into his neck for several minutes even after Floyd stopped moving and pleading for air.