U.S. Senator and Democratic presidential candidate Bernie Sanders joined the UAW picket line on Wednesday morning outside General Motors' Detroit-Hamtramck assembly plant.
Sanders' visit comes on the tenth day of the UAW's strike against GM.
Speaking from the back of a pickup truck, Sanders noted the government's past bailout of GM, the company's record profits, and the nearly $22 million salary of GM CEO Mary Barra.
He said GM should start investing in its workers and stop closing U.S. plants.
"What the workers here are saying, and workers all over America are saying, is 'enough is enough,'" said Sanders.
Sanders said GM has to start treating its workers fairly.
"Let me tell you something," said Sanders. "If General Motors thinks that after they treat their workers like crap, they're going to go to Washington and going to get huge federal contracts, they've got another guess coming."
GM spokesman James Cain said total compensation, including profit sharing, for the company's UAW workforce is the highest in the U.S. auto industry.
Democratic Senators and presidential candidates Amy Klobuchar and Elizabeth Warren also joined UAW striking workers outside GM's Detroit-Hamtramck plant during the past week.