Elon Musk, President Donald Trump‘s billionaire backer, has funneled more than $2.6 million and counting into a Wisconsin Supreme Court election that could decide on a case involving Tesla, his electric vehicle company.

Wisconsin Democrats are launching a full-court press against Elon Musk as they look to use angry voter sentiment against him as a tool to turn out voters in the high-stakes Wisconsin Supreme Court

Democrats on Tuesday promised to ''punch back'' against Elon Musk in the race for control of the Wisconsin Supreme Court, casting the election as a referendum on the billionaire adviser to President Donald Trump.