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

Former President Barack Obama arrived at the U.S. Capitol on Monday for President-elect Trump’s inauguration ceremony without former First Lady Michelle Obama.

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.

A spokesperson for Pelosi, who attended Trump’s 2017 inauguration, did not provide an explanation for the move.

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.

A video showing Donald Trump and Barack Obama, two political rivals, engaging in a casual conversation at the state funeral of Jimmy Carter went viral last week.

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

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

Michelle Obama and Donald Trump have not exactly hidden their disdain for one another. Here's what we know about their ongoing feud.

Donald Trump takes the oath as the 47th US president in a grand ceremony at Capitol Hill. Attended by global leaders, Trump vows major changes, including the largest deportation program, completing the border wall,

First Ladies' fashion choices at inauguration ceremonies have always made headlines. Melania Trump’s latest appearance in a wide-brimmed hat has sparked curiosity and continues this tradition. Notable past examples include Mary Todd Lincoln's floral sash and Michelle Obama's custom dresses.