As Barack, 63, Bill, 78, and Hillary, 77, entered the U.S. Capitol rotunda in Washington, D.C., on Monday for the 78-year-old’s historic swearing-in ceremony, people at the Capitol One Arena could be heard loudly booing.

As Obama, Clinton, and Hillary, entered the US Capitol rotunda in Washington, D.C., for Trump’s historic swearing-in ceremony on Monday, loud boos echoed from the crowd at the Capitol One Arena

The proposed constitutional amendment excludes presidents who served two consecutive terms, such as former President Barack Obama, from a third term.

A congressman is pushing for a law change that would allow President Trump to run for a third term — but would prevent other living presidents from returning to the White House.

Former Vice President Mike Pence is in attendance at Trump’s inauguration, his wife, former second lady Karen, is not. Karen Pence snubbed the Trumps earlier this month at Carter’s funeral, where she ignored Melania Trump’s efforts to shake her hand.

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

Many were quick to notice Michelle Obama's absence on Inauguration Day, but the former first lady had a message to share on social media as questions over why didn't attend swirl.

Former President Bill Clinton was in attendance at the inauguration of President ... former Secretary of State Hillary Clinton. Former presidents Barack Obama, George W. Bush and Joe Biden − who is leaving office Monday − were also spotted at Trump's ...

Former Presidents Bill Clinton, George W. Bush and Barack Obama would not be able to serve a third term because they served two consecutive terms.

Barack Obama arrived without Michelle Obama at Donald Trump's inauguration on Monday, 20 January. The 44th president entered the US Capitol's Rotunda solo as he prepared to witness the Republican's swearing-in as the 47th commander-in-chief of the United States.

Former President Barack Obama was spotted at the inauguration of Donald Trump. See pictures of the former president here.

Several top Democrats over the years, including Bill Clinton, Hillary Clinton and Barack Obama touted deporting illegal immigrants and other tough immigration policies.