Williams & Connolly said Wednesday that its former chairman, Dane Butswinkas, will “resume practicing law with the firm this month” after taking over to lead Tesla’s legal department just two months ago.

Butswinkas was named Tesla’s general counsel in December, during a period of intense regulatory scrutiny for the automobile and technology company, though he didn’t formally sever ties to the law firm. He replaced Todd Maron, who had been Tesla’s general counsel since 2013.