In a move that stunned environmental advocates, the US Department of Justice (DOJ) under Trump dropped a high-profile enforcement case on behalf of the EPA against a Louisiana rubber plant whose emissions of chloroprene, a chemical considered to be a likely carcinogen in humans, reached hundreds of students in nearby schools.

Elon Musk is almost irreplaceable as Tesla CEO, analysts and investors told Business Insider. But if he did leave, these contenders could replace him.

Elon Musk has called the Wall Street Journal report a "deliberately false article" and an "extremely bad breach of ethics."