There was furor over Trump wanting two scoops of ice cream instead of one[1]. I believe that in a post-Trump world, the American President will just never eat as far as the public knows. All meal-related meetings will be held behind closed doors, with not even a peep as to what was on the menu. All President-related meals will henceforth be national secrets revealed only to those with top security clearances. The White House kitchen will be treated with a similar secrecy as Area 51.
President will just never eat as far as the public knows
If the president never eats in public, how do we know they’re not a robot? This was a major plot point in the Asimov short story Evidence. The character went to extreme lengths to avoid being seen eating (and turned out to be a robot in the end).
Baby Alive has been able to eat since the early 1970s. Pretty sure robopresident could find a place to internally store consumed food until returning to its maintenance pod.
In the story above, the candidate is capable of eating (and does so in front of one of the roboticist main characters). She points out, as you do, that it would be trivial to store food internally for later disposal
How do you know anyone isn’t a robot who can fake eat?
This is the premise of the short story. The robot politician pretends to eat in order to trick his opponents who are trying to out him as a robot by proving he can’t eat.
Spoilers: they then try to trick the robot into violating the three laws of robotics. He ends up tricking his opponents by having another robot attack him, letting him freely defend himself when he otherwise wouldn’t be able to (since robots can’t harm humans).
It’s a fantastic story. Well worth the read. My description doesn’t do it justice.
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[1] https://www.youtube.com/watch?v=ixEahmx0Btw