A government watchdog group in Wisconsin filed a lawsuit Wednesday seeking to prohibit billionaire Elon Musk from ever again offering cash payments to voters in the battleground state like he did in this spring's hotly contested Supreme Court race.

A complaint says Musk violated the state’s election law in “a brazen scheme to bribe Wisconsin citizens to vote” during the state’s high-stakes Supreme Court election.

A government watchdog group in Wisconsin is suing Elon Musk over claims he illegally bribed voters by handing out cash prizes during the state’s hotly-contested Supreme Court election earlier this year.