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

Michelle Obama skipped the ceremony but former Presidents Joe Biden, Barack Obama, George W. Bush, and Bill Clinton attended Trump's inauguration.

Ronald Reagan scribbled a note in 1989 to his successor above an elephant cartoon. The tradition, started perhaps ...

Ronald Reagan probably didn't realize he was starting a tradition when he wrote a note congratulating his successor and left ...

Ronald Reagan probably didn't realize he was starting a tradition when he wrote a note congratulating his successor and left ...

Every president since Ronald Reagan has left a note for his successor, and President Biden could be the first to write a ...

Joe Biden, before departing the White House for the final time today, will leave Donald Trump a letter on the the Resolute ...

Biden will be writing a letter to Trump in what would be a first in the 35-year-old tradition -- penning a note for successor, Trump, who had left a letter for him as a predecessor in 2020.

Monday’s change of Oval Office occupants is a ritual full of traditions and customs. One of the more modern ones began in 1989, when Ronald Reagan left a note for George H.W. Bush on stationery with a ...