I'm not speculating. I have direct physiologic evidence regarding how we can tell when Trump uses stimulants. Nobody has offered any plausible alternative explanation. https://medium.com/aha-science/the-debate-debate-do-biden-or-trump-use-performance-enhancing-drugs-e513f7ad7683

The man has dilated pupils, a marked reduction in physical gestures, and a marked increase in coherence of his speech at certain times when it is important for him to "look presidential". Trump has been in numerous other quiet settings and has not been able to display these behaviors, except in other instances when he uses stimulants.

Presenting reasonable conclusions based on observable facts is not dishonest nor grounds for libel, nor inappropriate for a medical professional