Robert McEllrath and Bernie Sanders

Democratic presidential candidate Bernie Sanders has picked up an endorsement from an influential union that represents nearly 50,000 dockworkers on the West Coast.

The International Longshore and Warehouse Union said its executive board has voted to support the Vermont senator in his bid for president. In doing so, the San Francisco-based union breaks with its East Coast counterpart, the International Longshoremen’s Association, which has backed Democratic front-runner Hillary Clinton.

Robert McEllrath, president of the ILWU, described Sanders as “the best candidate for America’s working families,” who leads on issues that matter most to workers, including “better trade agreements, support for unions, fair wages, tuition for students and public colleges, Medicare for all, fighting a corrupt campaign finance system and confronting the power of Wall Street that’s making life harder for most Americans.”

Other unions that have backed Sanders include the Communications Workers of America, the National Nurses United and the American Postal Workers Union. The ILWU said many of its members have expressed enthusiastic support for Sanders, whose message has also resonated with Obey founder and artist Shepard Fairey, who has designed a T-shirt for him.

Not to be outdone, Clinton has also been memorialized in T-shirts by Marc Jacobs, Tory Burch and Public School’s Dao-Yi Chow and Maxwell Osborne.