3. Trump directed the White House counsel, Don McGahn, to have Special Counsel Mueller removed on the basis of pretextual conflicts of interest that Trump’s advisers had already told him were “ridiculous” and could not justify removing the special counsel.
— Justin Amash (@justinamash) May 23, 2019
Even if this was confirmed beyond a reasonable doubt it would be no crime because it never actually happened. Trump never got Mueller fired and only voiced his frustration about the slow down his administration has had because of the Mueller investigation.