Musk attacked Trump directly over his signature spending bill for the first time Thursday, sparking an explosive back-and-forth.

How should a corporate board respond to a CEO publicly insulting and shaming a sitting president? It’s not a question that most need to consider, since few chief executives dare to directly criticize the White House.

President Donald Trump is mulling selling or giving away a red Tesla he bought in March. Trump and Elon Musk fell out on Thursday after the Tesla CEO harshly criticized a major tax bill the president wants Congress to pass.