Vance told reporters that he has spoken to both Musk and Trump about trying to make sure Musk is supportive of the president, adding that the Trump team was grateful for what Musk did early in the process of making government more efficient, Reuters reported.

Musk on Wednesday said he regretted some of the social media posts he had made about Trump, saying they had gone "too far," a gesture the US president described as "very nice," in the latest sign of a tentative reconciliation between the two.