Every president since Ronald Reagan has left a note for his successor, and President Joe 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.

The president will deliver his final remarks from the Oval Office. In the past, President Barack Obama went to his home in Chicago for his farewell speech. George W. Bush spoke from the East Room. Bill Clinton spoke from the Oval Office.

President Biden is delivering his fifth and final address from the Oval Office five days before the end of his single term in office.

The speech caps not only Biden's presidency but his five decades in politics. He was once the country's youngest senator at 30 years old.