They wouldn't need terrorism or the defense production act. Musk can have citizenship stripped since he illegally worked under a student visa according to his

They wouldn't need terrorism or the defense production act. Musk can have citizenship stripped since he illegally worked under a student visa according to his brother, if he didn't disclose it in the naturalization process. And any assets earned while here can be taken. The latter may be harder but could be done with civil asset forfeiture stuff Trump brought back last term, with a lower standard of proof, though I think that was more about sharing state forfeitures.