If you over simplify, as I think Ms. Hayes has, it's pretty plain. No one person, president, senator, congressman, etc, can overturn an amendment to our Constitution. However, any right protected by an amendment can be modified as has been done many times in the past through judicial fiat. So to flesh out the concerns of Second Amendment people, should supreme court justices resign during the next administration, and judges placed into that court who oppose the Heller decision, it is quite likely that gun control advocates will file suits that will go all the way to the supreme court and the court will reverse itself. The right to keep and bear arms will then become a collective rather than an individual right.