Trump Could Fire Mueller Next Week Before Christmas When Congress Is Gone, Rep Says - There has been a lot of speculation about this. The rumor mill has Trump taking action on December 22nd. If he nominates someone during the break then Congress will not be able to vet them. If people are traveling for Christmas then they will be less likely to notice. The news from the White House is that Trump is "not planning to fire Mueller." Which absolutely means he is planning to fire him.