Very high-IQ people (and whether you like it or not, Trump is one of them) often think way outside the box with their ideas. Some may be feasible, some may not.
I had an extremely high-IQ friend (now confined to a nursing home in his old age) who came up with ideas totally out of left field. One of his theories is to use quartz crystals for energy using their vibrations. Another theory was the comet that caused the dinosaurs to go extinct slowed down the Earth's rotation such that they were crushed under their own weight.
Maybe feasible, maybe not.