President of the United States of America Joe Biden stumbled three times while climbing the stairs to board Air Force One. The video of him losing his footing is being widely shared on social media.

Boarding a flight to Atlanta, where he was to speak to the Asian-American community about a shooting there earlier this week, Biden stumbled slightly about halfway up the 25 or so stairs, recovered, then stumbled again and briefly went down on one knee, according to video footage.

The president appeared to rub his left knee before getting back up, then completed the stairs at a slower pace. He stopped at the top of the stairs, turned around and offered a crisp salute.

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Following the incident, Press Secretary Karine Jean-Pierre told White House reporters that the president was “doing fine” after the fall.

“It was very windy. I almost fell coming up the steps myself. He is doing 100 percent,” she told reporters.

“He’s doing fine. He’s preparing for the trip just fine,” she added.

Biden’s stumbling has raised concerns about the 78-year-old President’s health, was the oldest person ever to assume the presidency. In late November, Biden suffered a hairline fracture in his right foot while playing with one of his dogs.

In November 2020, Biden won an extremely close US election battle against former president Donald Trump. He was sworn in as the 46th President of the United States in January 2021.