To be fair and objective, lets look at the exact words here, and put it in the context of what at the time was a scientific community scrambling with ideas on how to best manage the virus during a nationwide panic (six weeks into the pandemic).
Trump had invited William Bryan, undersecretary for science and technology at the DHS, to comment on technologies that seem to be effective on the virus on inanimate surfaces, such as UV light and disinfectants. After Bryan's presentation, Trump tried, albeit awkwardly, to extrapolate the technology to treating the infected body.
Here are his EXACT words:
,,,"A question that probably some of you are thinking of if you’re totally into that world, which I find to be very interesting. So, supposedly we hit the body with a tremendous, whether it’s ultraviolet or just very powerful light.
(now turning to Bryan) "And I think you said that hasn’t been checked, but you’re going to test it. And then I said, supposing you brought the light inside the body, which you can do either through the skin or in some other way. And I think you said you’re going to test that, too. Sounds interesting, right?
"And then I see the disinfectant, where it knocks it out in one minute. And is there a way we can do something like that, by injection inside or almost a cleaning, because you see it gets in the lungs and it (the virus) does a tremendous number on the lungs, so it’d be interesting to check that, so that you’re going to have to use medical doctors with, but it sounds interesting to me. So, we’ll see, but the whole concept of the light, the way it kills it in one minute. That’s pretty powerful."
Again, not a Trump fan, but the incessant negative spin that the media puts on anything he says is getting old. Even during that specific press conference, after there was a long discussion about how UV light and heat can eradicate the virus, a reporter with an obvious agenda asked something to the effect whether Trump's insinuation that sick people in Florida should go outside in the heat was a safe thing to propose? That of course, is not even close to what he actually said.
Trump is a self-obsessed megalomaniac that can't get out of his own way, but promoting wildly spun and/or out-of-context narratives is not a fair or intelligent way to go after him.