Billionaire Bill Ackman hopes Trump and Musk will "make peace".

Billionaire hedge fund manager Bill Ackman urged President Trump and Elon Musk to stop fighting on Thursday. The two should "coexist peacefully for the good of our country," Ackman said on Twitter. The founder and CEO of hedge fund Pershing Square Capital Management publicly supported Trump in the months leading up to the November election last year. "We are much stronger together than apart," Ackman wrote.