'Ultraviolet Irradiation of Blood - The Cure That Time Forgot' - Donald J. Trump

"Supposing we hit the body with a tremendous — whether it’s ultraviolet or just very powerful light,” Mr. Trump said. “And I think you said that hasn’t been checked, but we’re going to test it?” he added, turning to Mr. Bryan. “And then I said, supposing you brought the light inside the body, either through the skin or some other way.”

....it was already existing science and he trolled the media again.

"Ultraviolet Irradiation of Blood"

“The Cure That Time Forgot”

Link: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6122858/

Archived: https://archive.ph/https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6122858/