No. Leave Mount Rushmore alone. Given the liberals mental state in recent years, putting Trump or another Republican up on Rushmore is likely to see it defaced or damaged. Should Trump make it through two full terms and truly transforms the country, we can come up with some other monument in his honor.
I would suggest doing a separate site for a monument to president trump. do an omage to the original mount Rushmore using presidents Eisenhower, Kennedy, Regan and Trump. my only reason for including Kennedy was to make it bipartisan. the other choice was franklin Roosevelt