Mr Trump would reportedly hit the button when in need of refreshment and a staff member would bring in a soda on a silver platter.
Former White House aide Chris Sims wrote about the button in his 2019 book Team of Vipers.
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He said that the twice-impeached president would prank visitors by hitting the button and suggesting it was related to the country’s nuclear weapons arsenal.
“Out of nowhere, he’d suddenly press the button,” wrote Mr Sims.
“Not sure what to do, guests would look at one another with raised eyebrows. Moments later, a steward would enter the room carrying a glass filled with Diet Coke on a silver platter, and Trump would burst out laughing.”
Mr Biden may have removed the button but is reportedly a soda fan as well and prefers Coke Zero, according to the Washington Post.
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