Musk's contract with DOGE has expired. In other words, his contract with government has expired. So, deport him out of US government, to America, with the loads of other people who are not in government..

Many countries will be willing to give Elon Musk citizenship if the US attempts to deport him. I guess Canada will want him to relocate most of his business to the country. The US will lose one of the smartest minds and a major employer of labour if Elon leaves. From my observation, Trump is just bluffing, I don't think he is serious.
Obviously Trump is just bluffing and I even believe that Trump would not dare to deport Elon even if he had the authority to do so. Expelling one of the world's greatest minds from the country over a personal conflict would be the dumbest move, and I don't think Trump's allies or advisers would let him do it.
Not to mention, losing Elon would be a huge loss for the tech industry as well as the US economy, and even the average person is aware of that. Trump is not stupid and demented enough to not realize that.
Note that all men and women in America are men and women. They only become 'persons' on an indictment when they accept that they are the person named on the indictment.
If a person named on an indictment or any other presentment by government, wants to see if they are that person, all they have to do it look for their signature on the document. If their signature is not there, the document is a sales pitch, inviting them to lower their status from man/woman to that of a 'person'.
https://educationcenter2000.com/