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.

From exchanging candy to friendly belly taps, see some of the most memorable moments caught on camera between the former presidents Barack Obama and George W. Bush, and their wives Michelle Obama and Laura Bush.

Former President George W. Bush was spotted at the inauguration of Donald Trump. See pictures of the former president here.

Ahead of entering the rotunda, a Washington Post correspondent shared a video of former President Obama and Bush joking with each other. As they lined up for their entrance, a Washington staffer asked Bush, jokingly, if he was going to behave. Obama, who was right behind George Bush in line, answered for him sarcastically, saying. “Nope.”

George W. Bush gave fellow former president Barack Obama a friendly belly tap at the Jan. 9 funeral of Jimmy Carter, and the internet was obsessed with the viral moment.

Former Presidents Barack Obama, Bill Clinton and George W. Bush will not attend President-elect Donald Trump's traditional inaugural lunch.

Two nuclear-powered aircraft carriers, to be constructed "in the years ahead," will carry the names of former President Bill Clinton and former President George W. Bush, the White House announced Monday.

As President Joe Biden prepared to pass the baton to President-elect Donald Trump, he followed the tradition of leaving his successor a note.

Two new aircraft carriers are being named after Bill Clinton and George W. Bush, continuing the Navy convention of naming them after US presidents.

Of all the executive orders Trump signed on his first day in office, the one that reverberated the most across Washington was his move to pardon Jan. 6 rioters.

In his first hours as president, Trump signed numerous executive orders to implement his administration's promises.