United Auto Workers President Dennis Williams announced today that his union will endorse a Presidential candidate shortly. While declining to comment on who that candidate will be, Williams stated adamantly that the UAW will not endorse Donald Trump. While the UAW has a history of endorsing Democratic candidates, Donald Trump’s rhetoric regarding free trade and the outsourcing of jobs to Mexico has endeared him to many UAW members in recent months. Exit polls indicate that 28 percent of UAW members support Donald Trump for President, by far the highest of any Republican candidate. Trump, now the presumptive Republican nominee, has begun to shift his focus towards the general election and is courting the votes of union members who oppose recent free trade agreements that they say threaten American manufacturing. Trump has capitalized on the outrage surrounding President Bill Clinton’s support of the North American Free Trade Agreement (NAFTA). Trump now either leads or is within striking distance of Hillary Clinton in the Rust Belt states of Michigan, Pennsylvania, Ohio, Wisconsin, and Minnesota due in large part to opposition to NAFTA. UAW Vice President Cindy Estrada, an outspoken Bernie Sanders supporter, has cited NAFTA as a major reason for her reluctance to support Hillary Clinton. The United Auto Workers have a membership of over 412,000 active workers and 1 million retirees. Regardless of which Democrat the union chooses to endorse, that candidate will benefit from the endorsement in the Rust Belt states while Donald Trump will likely retain support among many UAW members.