Joe Lonsdale, a tech investor close to Mr. Musk, is not planning to play a formal role in the Trump transition, according to a person briefed on the matter, and he has said publicly that he does not want to join the administration “full time” but would rather play a part-time advisory role.

President-elect Donald Trump and Elon Musk have big ambitions for making the federal government leaner and more efficient by reviewing its budget and operations from top to bottom.

Voters thought they had a chance to randomly win $1 million as part of Musk's PAC. Musk's own attorneys said the winners were predetermined.