Above, workers fight off assault by police and national guard in May 1934 Teamster strike. In 1941 trial of revolutionary Teamster and Socialist Workers Party leaders, prosecutor asked James P. Cannon if this fight against the deputies “was the kind of violence SWP advocated.” The deputies “were organized to drive workers off the streets. They got a dose of their own medicine,” Cannon said. “I think workers have a right to defend themselves. If that is treason you can make the most of it.”