In the 2019 book, Team of Vipers, written by former White House aide Chris Sims, the use of the button was explained in more detail. Chris described how Donald Trump would suddenly press the Diet Coke button, leaving his guests in a slight state of panic before a butler would enter with the drink on a silver platter.

President Trump reinstalls the famous Diet Coke button on the Oval Office desk, along with other personalized changes marking his return to the White House.

Donald Trump had used the valet button to order Diet Coke beverages between 2017 and 2021 - during his first presidency - but then Joe Biden had it removed when he came into power

President Donald Trump has restored his famed Diet Coke button to the Oval Office to easily order his favorite drink at his heart’s content. The red button inside a wooden box was already on the Resolute Desk by mid-afternoon on Inauguration Day waiting for Trump, reported The Wall Street Journal.

Joe Biden’s blue rug was swapped for Trump’s neutral-coloured one as part of a switch from the outgoing president’s belongings to the incoming one’s, and Trump’s infamous red Diet Coke button reportedly was back in place by as early as mid-afternoon on inauguration day.

Donald Trump's beloved soda button is back and ready for four more years of thirst quenching with just a push.

The return of the Diet Coke button and Trumps well-documented culinary preferences highlight his emphasis on personal comfort and routines during his time in office.