Michelle Obama to skip Trump inauguration

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 US leaders and their spouses, but former Presidents Barack Obama, Bill Clinton and George W Bush will be there.

Laura Bush and former Secretary of State Hillary Clinton will join their husbands for the January 20 swearing-in ceremony at the Capitol, representatives said.

"Former President Barack Obama is confirmed to attend the 60th Inaugural Ceremonies. Former first lady Michelle Obama will not attend the upcoming inauguration," said a statement from the Office of Barack and Michelle Obama that was shared with The Associated Press.

No explanation was given for why Michelle Obama was skipping Trump's inauguration. She also did not attend last week's state funeral in Washington for former President Jimmy Carter. Former presidents Trump, Obama, Bush and Clinton and their spouses attended ? except for her.

Bill Clinton will attend the swearing-in ceremony, a person familiar with the former president's schedule confirmed for the AP. Hillary Clinton will also attend, a spokesperson said.

The Office of George W Bush said he and former first lady Laura Bush are attending.

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.

All three former presidents and their wives attended Trump's first inauguration in 2017, including Hillary Clinton, after she lost the 2016 presidential election to Trump. Carter also attended.

Tech CEOs Elon Musk, Jeff Bezos and Mark Zuckerberg will attend the inauguration on Monday, according to a source familiar with planning for the event.

The chief executives of Tesla, Amazon and Meta will be featured prominently at Trump's swearing in, sitting with the Republican's Cabinet nominees and other elected officials, according to NBC News, which first reported their attendance.

Bezos' Amazon and Zuckerberg's Meta are among the companies that have donated to Trump's inauguration, each giving $US1 million ($A1.6 million). Musk, the head of Tesla, SpaceX and X, spent more than a quarter of a billion dollars ($A404 billion) to help elect Trump in November.