Ending his day of remembrance for the 9/11 victims, President Joe Biden paid his respects at the National Pentagon 9/11 Memorial.

Biden was accompanied by First Lady Jill Biden in a moment of silence. After that, the President laid a wreath studded with white, purple, and red flowers on display in front of the memorial benches that mark the 184 victims of the attack on the Pentagon.

The First couple stood side by side with the Second couple as vice President Kamala Harris and her husband, Doug Emhoff took a moment of silence at the memorial. All four listened as a uniformed bugler played taps.

Washington was Biden’s third and final stop of the day. He earlier visited the National September 11 Memorial in New York City and the Flight 93 Memorial in Shanksville, Pennsylvania. He is scheduled to spend the rest of the weekend at his home in Wilmington, Delaware.

Earlier in the day, Presidents Biden, Barack Obama, and Bill Clinton all gathered at the site where the World Trade Center towers fell two decades ago.

Wearing blue ribbons and holding their hands over their hearts, the trio saw a procession marching a flag through the memorial. Hundreds of Americans had gathered for the remembrance, some carrying photos of loved ones lost in the attacks.

Before the event began, a jet flew overhead in an eerie echo of the attacks, drawing a glance from Biden toward the sky.

Biden was a senator when hijackers commandeered four planes and executed the attack. Now he marks the 9/11 anniversary for the first time as commander in chief.

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The president spent Saturday paying his respects at the trio of sites where the planes crashed, but he spoke very little and mostly left the speech-making to others.

Instead, the White House released a taped address late Friday in which Biden spoke of the “true sense of national unity” that emerged after the attacks, seen in “heroism everywhere — in places expected and unexpected.”