The richest man in the world is the biggest spender on behalf of a right-wing effort to take control of a state Supreme Court.

Democrats in Wisconsin are trying to use a state judicial race as a referendum on Elon Musk. In the final 10 days of the high-profile state Supreme Court campaign, the Democratic Party of Wisconsin is blanketing the TV airwaves with two new ads that put Musk front-and-center.

Elon Musk has spent millions on the race for a single seat on Wisconsin's Supreme Court. Now the billionaire's PAC is offering the GOP candidate free advice: Get Trumpier. Why it matters: The Wisconsin contest — a nationalized proxy fight between the political parties and billionaire benefactors — is a referendum on President Trump.