Hillary Clinton Arrives Washington, D.C for Donald Trump’s Inauguration

After fighting a bitter and often personal battle during last year’s bruising presidential election, Hillary Clinton arrived for Donald Trump‘s swearing-in ceremony in Washington, D.C. Friday alongside her husband, former President Bill Clinton, and their daughter, Chelsea Clinton.

“This is not an easy day for anyone that supported her or believes in progressive values, let alone her,” a longtime aide tells PEOPLE. “But she did it, because she’s Hillary Clinton, and she’s there for all the right reasons, honoring democracy, and representing the values she ran on.”

Former presidents traditionally attend the ceremonial transfer of power at the U.S. Capitol, and the Clintons weren’t the only former residents of the White House present for the event.

John Angelillo-Pool/Getty

Former President George W. Bush and wife Laura Bush were also in attendance — despite his parents, former President George H. W. Bush and former First Lady Barbara Bush, both being hospitalized in Houston this week.

Former president Jimmy Carter is also expected to attend.