It is stolen land. That being said, you can’t put the mountain back together. Perhaps talk to the tribes from which the mountain was stolen how they want to deal with it. Trump has so thoroughly and destroyed everything that was ever good in this nation that I would not care if every statue were torn down. He has created such a nightmare that to me, seeing someone fly the US flag brings a taste of bile. His lies and love of power and money has destroyed all that is good about our nation. So, I don’t think taxpayer money should pay to do anything about Rushmore until we find out what the people who rightly own the mountain think. Then yes, by all means. Return what was stolen.