WASHINGTON, June 11 (Reuters) - U.S. President Donald

Trump was frustrated with billionaire Elon Musk, but doesn't

want a long-term feud with the entrepreneur and big campaign

donor, Vice President JD Vance said on Wednesday.

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.

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 U.S. president described as "very nice," in the

latest sign of a tentative reconciliation between the two.