The secret contents of former President Joe Biden's letter to Donald Trump were revealed by Peter Doocy, a Fox News correspondent, on X on Wednesday.

What is clear is that after four contentious years, Biden leaves Washington as a remarkably consequential one-term president.

Ronald Reagan scribbled a note in 1989 to his successor above an elephant cartoon. The tradition, started perhaps inadvertently, was continued by Joe Biden.

President Joe Biden has adhered to the tradition started by Ronald Reagan and left his successor, Donald Trump, a letter as he hands over power.Biden confirmed that he wrote Trump a letter, but he didn’t say what he wrote to the 47th president,

Ronald Reagan started a tradition as he prepared to leave office after two terms as president: Write a note congratulating your successor and leave it in the Oval Office desk drawer.

Donald Trump has revealed what Joe Biden wrote to him in his "inspirational" farewell letter. Trump found the letter in his desk on Monday, as he signed executive orders in the Oval Office. It is part of a tradition, started by President Ronald Reagan, which sees one president leave a welcome note to his successor.

The rug, which was in place during Ronald Reagan’s administration and during Trump’s first term, was reinstalled during Trump’s inauguration ceremony, according to CBS News. The Resolute Desk had to be partially disassembled in order to facilitate its return.

US President Donald Trump has revealed what his predecessor Joe Biden said to him in a letter left in the Oval Office.

After four years of a subdued term under President Joe Biden, 82, Trump has brought energy and unpredictability back to the Oval Office. The former reality TV star and businessman known for his branding, Trump, 78, jump-started his agenda with an eye for dramatics.

WASHINGTON (NEXSTAR) – President Donald Trump told reporters Tuesday that former President Joe Biden wrote him a “nice letter.” As part of an Inauguration Day tradition, the letter was left inside the Resolute Desk at the White House. President Trump found the letter in the Oval Office on Monday night following his inauguration.

As Donald Trump returns to the White House, he has built the most formidable foundation of Republican electoral strength since the Ronald Reagan era in the 1980s.