Disney CEO Bob Iger is following Elon Musk's lead in announcing that he will depart President Trump's business advisory council after the president said the U.S. would break with the Paris climate agreement.

"As a matter of principle, I've resigned from the President's Council over the #ParisAgreement withdrawal," Iger said in a tweet Thursday evening.

Earlier in the day, Musk, who is CEO of Tesla, made good on his threat to depart the President's Strategic and Policy Forum, comprised of some of America's leading business leaders to advise Trump and help him put together his economic agenda. He also said he would leave Trump's manufacturing jobs council.

"Am departing presidential councils. Climate change is real. Leaving Paris is not good for America or the world," the billionaire electronic car magnate said in a tweet Thursday afternoon.

Other CEOs, including IBM's Ginni Rometty, plan to stay a part of Trump's advisory councils.