You can tell just by listening to him that he wasn't sarcastic. But if you hadn't posted this article I would have assumed he just talked to a scientist about sanitizing items and got confused. I didn't know until now someone pitched this to him as a cure. People don't want to believe the person running this country is that stupid. This is a level of stupidity that exceeds anything most people have seen first hand, except that rare person that everyone whispers about "hey that guy is a fucking moron. He said Obama founded ISIS."
It's also worth noting that unless there's some miracle we're not going to have under 60,000 people die in this first wave. We're at 52,000 deaths and not far from peak. What we're finding out and should have known is that it's steep on the ascent and flat on the far side of the peak.
Testing in the U.S. is up to 200,000 a day, which is a 33% increase and in the right direction if it is not just a blip.