I'm sure he just had a cold - BUT he kinda does act like a person on blow.
The symptoms of cocaine use:
Euphoria
Overconfidence
Unusual excitement
Aggressiveness
Paranoia
Poor judgment
Delusions
Hallucinations
Howard Dean asks if Donald Trump’s sniffling in debate was due to cocaine
Trump’s sniffles were mainly the subject of jokes on social media, but Howard Dean, the former Vermont governor and Democratic Committee chair, asked if they were because the Republican nominee was a “coke user.”
Dean was presumably referring to the inhalant drug, and not the sugared version of Trump’s beloved Diet Coke.
There does not appear to be any evidence that Trump uses cocaine.