This Inauguration Day, President Joe Biden and first lady Jill Biden will wake up in a White House filled with their belongings and personal mementos -- everything from personal photographs to their favorite foods in the kitchen.

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

A longtime enthusiast of political tradition, Biden could well embrace membership in the ex-presidents club. The former commanders in chief from time to time pose for pictures and pat one another on the back while milling around at historic events — and sit together at VIP funerals.

President Joe Biden spoke of his friendship with Jimmy Carter that started in 1974 when Biden was the first sitting Democratic senator to endorse the late president.

It marks a second rare reunion for the presidents, who before this month, had last been in the same place for the state funeral of George H.W. Bush in December 2018. Trump skipped

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.

Billionaires at the Capitol on Monday included Tesla founder and CEO Elon Musk, Amazon founder Jeff Bezos, Meta CEO Mark Zuckerberg, former presidential candidate Vivek Ramaswamy, OpenAI CEO Sam Altman, billionaire Trump supporter Miriam Adelson, media mogul Rupert Murdoch and others.

Former Presidents Barack Obama, Bill Clinton and George W. Bush will come together again next week for the inauguration of President-elect Donald Trump, but one spouse, Michelle Obama, is sitting this one out.

Inside Washington National Cathedral, the five men who've occupied the Oval Office since 1993 convened for a rare moment together at Jimmy Carter’s state funeral.

The guest list includes some of America’s most influential tech billionaires and politicians as well as some foreign leaders and celebrities who have embraced Trump.

Nearly two weeks after former U.S. President Jimmy Carter died at the age of 100, public figures including President-Elect Donald Trump and former President Barack Obama, gathered to honor him.

Update 9:27 a.m. ET, Jan. 20: Today is not only Inauguration Day but it is also a federal holiday, Martin Luther King Jr. Day. But the work of Washington will continue. Several confirmation votes and meetings are scheduled to be held today.