Hmm, kay. I have had friends who used chlorine dioxide with unpleasant results. Trump did not use that name specifically, so imho it is not totally clear what he meant, unless he did use that name.
The chlorine dioxide that Grenon works with is the same stuff outdoorsy/survivalist people use to purify water. It has two parts and you mix together one or two drops of part A and part B and then add water to it. It can cause a severe Herxheimer reaction if you don’t use the correct dosage. Jim Humble was the man who came up with all the protocols while a missionary in Africa, curing a lot of malaria patients there. It is also said to cure certain cancers. You might want to read Dr. Kory’s Substack—he is doing a series on chlorine dioxide. https://open.substack.com/pub/pierrekory