Trump is the first president in over a century to return to office after a nonconsecutive term, presenting a unique situation for the tradition. President Biden has left a note for Trump in the Oval Office’s Resolute Desk, as confirmed by Trump after taking office. President Trump, upon returning to the Oval Office, confirmed that President Biden left him a letter in the Resolute Desk—a continuation of the long-standing tradition of outgoing presidents writing notes for their successors. How the tradition of presidential letters beganThe backstory:The tradition of presidential letters began in 1989 when Ronald Reagan left a handwritten note for his successor, George H.W. Bush’s note to Bill Clinton in 1993 famously read, "Your success now is our country’s success.