Elon Musk on Wednesday said he regretted some of the social media posts he made about U.S. President Donald Trump last week. Musk and Trump had engaged in an explosive public feud over social media.

Elon Musk, who served as a close adviser and confidant to President Donald Trump until a bitter public falling out last week in a series of social-media posts, issued his strongest sign of contrition yet over how he handled the rupture.