Except that impeachment requires acts of Congress. The SC opinion was explicitly clear that the president is immune from prosecution for ever issuing a pardon. So the president could order the military to capture or kill any representative or senator likely to vote for impeachment, and pardon everyone involved. There would be no remedy through the courts, because those who carried it out were pardoned, and the ruling also makes it explicitly clear that ordering the military to do something illegal is also an official act, so the president is immune from prosecution.
So a president determined enough to prevent impeachment could avoid it as long as he or she were able to find a large enough group within the military willing to go along with it.
So a president determined enough to prevent impeachment could avoid it as long as he or she were able to find a large enough group within the military willing to go along with it.