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

Former President Joe Biden has continued a tradition started by President Ronald Reagan, who left behind a letter in the White House for his successor, George H.W. Bush.

"Maybe we should all read it together," Trump told reporters upon finding Biden's letter. "Maybe I'll read it first and then make that determination."