President Trump has lost the support of a top billionaire business leader over his decision to withdraw from the Paris climate deal.
Elon Musk wrote Thursday on Twitter that he is "departing presidential councils," something he had vowed to do if Trump took this step.
"Climate change is real. Leaving Paris is not good for America or the world," Musk said.
He is the founder of SpaceX and Tesla, among other companies. He has been a member of Trump's infrastructure council, manufacturing jobs council, and strategic and policy forum.