As the Oval Office underwent a makeover on Donald Trump’s inauguration day, an iconic red button made a comeback, according to The Wall Street Journal. And no, it’s not for nuclear weapons. The Resolute Desk got retrofitted with Trump’s beloved Diet Coke button,

President Biden wrote President-elect Donald Trump a letter as he departed the White House, keeping to tradition. As Biden awaited Trump’s arrival at the White House, he was asked if he wrote a letter to Trump.

Every president since Ronald Reagan has left a note for his successor, and President Biden is the first to write a letter to someone who is both his successor and the predecessor who left a note for him.

President Trump found a handwritten letter from outgoing President Biden in the Oval Office’s Resolute Desk, continuing a longstanding tradition of presidential transitions.

As the Oval Office underwent a makeover on Inauguration Day, one iconic red button made a return to the Resolute Desk, where it was mounted in a wooden box