Just ten days ago, at Jimmy Carter's state funeral at Washington National Cathedral today, all five living U.S. presidents attended: Bill Clinton, George W. Bush, Barack Obama, Donald Trump, and Joe Biden. Today, all five men were once again in the same place, as Clinton, Bush, Obama, and Biden attended Trump's inauguration.

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

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.

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.

President Donald Trump’s second inauguration seemed normal, but there were concerns about U.S. democracy lingering just beneath the surface.

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.

About 20,000 Trump supporters have gathered at Capital One Arena in Washington Monday afternoon, where Trump and Vice President JD Vance are expected to address the crowd later in the day. Trump is also expected to sign several executive actions at the area during his on-stage appearance.

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.

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.

As Donald Trump was sworn in for his second term, see some of the most memorable photos of the day, of allies including many tech billionaires such as Mark Zuckerberg and Jeff Bezos, and those he has attacked,