Barack Obama, Hillary Clinton and Bernie Sanders weren't too subtle about disguising their feelings at Donald Trump's inauguration.

Donald Trump’s second inauguration as the 47th President of the United States took place on Monday in Washington, D.C. Following tradition, the day began with a worship service at St. John’s Episcopal Church and a White House meeting between incoming and outgoing presidents.

WEST PALM BEACH, Fla. — Former first lady Michelle Obama will skip the inauguration of President-elect Donald Trump, the second time in two weeks that she is not attending a gathering of former U.S. leaders and their spouses, but former Presidents Barack Obama, George W. Bush and Bill Clinton will be there.

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.

The inauguration is the second gathering of U.S. presidents and their spouses that Michelle Obama has missed in recent weeks.

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

WEST PALM BEACH, Fla. -- Former first lady Michelle Obama will skip the inauguration of President-elect Donald Trump, the second time in two weeks that she is not attending a gathering of former U.S. leaders and their spouses, but former Presidents Barack Obama, George W. Bush and Bill Clinton will be there.

Former first lady Michelle Obama won’t attend President-elect Donald Trump’s inauguration, though former President Barack Obama will be there, the Obama’s office said in a statement. No reason was given.

The planned absence Monday follows another notable absence last week at the state funeral of former president Jimmy Carter.

"A short time from now, we will be changing the name of the Gulf of Mexico to the Gulf of America," Trump said in his speech, prompting Clinton's laughter

Michelle Obama was the only spouse absent from the service last week at Washington National Cathedral, where her husband and Trump were seated next to each other and chatted and laughed like old friends despite the history of political animosity between the Democratic former president and the returning Republican.