Bill and Hillary Clinton Hillary Diane Rodham ClintonBiden courts veterans amid fallout from Trump military controversies Biden looks to shore up Latino support in Florida MLB owner: It's 'very necessary' to vote for Trump MORE will attend President-elect Donald Trump Donald John TrumpTrump says he doesn't think he could've done more to stop virus spread Conservative activist Lauren Witzke wins GOP Senate primary in Delaware Trump defends claim coronavirus will disappear, citing 'herd mentality' MORE's inauguration later this month, aides to the Clintons confirmed to The Hill on Tuesday.

Hillary Clinton, the 2016 Democratic presidential nominee, faced Trump in a brutal and contentious campaign, which culminated in a stunning Election Day upset for Trump, despite Clinton’s big edge in the polls and her victory in the popular vote.

New York magazine first reported the Clintons' plans.

Trump's battle with Clinton turned heated after they secured their parties' nominations.

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Trump repeatedly blasted the Clintons as corrupt, invited those who accused President Bill Clinton William (Bill) Jefferson ClintonTrump pulls into must-win Arizona trailing in polls Does Kamala Harris's music matter? President Nancy Pelosi? Don't underestimate what she might do in office MORE of sexual harassment or abuse to a debate, and called on Hillary Clinton to be sent to jail for her handling of classified emails while secretary of State.

Clinton, meanwhile, criticized Trump's conduct at many of her rallies.

She campaigned with a woman who had accused Trump of bullying her because of weight gain, highlighted allegations of sexual misconduct against him and characterized him as unfit for the office of the president.

While Clinton has made a handful of public appearances since the election, she has mostly stepped back from the public eye.

Trump and the Clintons had been friendly in the years before the election — the Clintons attended Trump's wedding to future first lady Melania Trump back in 2005, and President Clinton joined Trump at the 2000 U.S. Open tennis tournament in New York.

Their daughters, Chelsea Clinton and Ivanka Trump — Trump's elder daughter — have promised to continue their own friendship after the rough election.

The Clintons' announcement leaves President George H.W. Bush as the only living president who won’t attend, due to health reasons.

President George W. Bush earlier Tuesday said he would attend the inauguration, and President Jimmy Carter confirmed weeks ago that he would attend as well.

— This report was updated at 2:23 p.m.