I hear what you're saying. I'll bet you a thousand Earth dollars that Trump is a pantry drinker. A secret sipper. I could see him pouring some of that wonderful Trump vodka into a Diet Coke can, and taking a nip here and there throughout the day.
And while he most likely is a secret boozer, he sure as shit is on all kinds of pills. The guy is clearly on at least two anti-depressants, and no one would be surprised to learn that he's into the opiates.
Trump likes to stay in control, so I can't see him drinking to excess every single day. It is easy to imagine him letting loose with a couple of escorts and a big bag of cocaine, but who knows? Maybe he's mellowed with age.