and Trump pardons him. Then based on information that comes out in the Manafort trial, Trump is impeached. Can congress reverse the pardon? As I remember from civics 101 (and it was about that many years back) there is no mechanism in place to reverse a presidential pardon. But in the case as I described it, it seems as though there should be something congress could do. I can't believe we'd need a constitutional convention to reverse a pardon given by one of the perpetrators.