President Joe Biden stumbled three times while climbing the stairs to board Air Force One on Friday. Deputy Press Secretary Karine Jean-Pierre told reporters the nation's oldest president was "doing fine" after he fell, according to The Independent. “It was very windy. I almost fell coming up the steps myself. He is doing 100 percent,” The Independent reports she said. “He’s doing fine. He’s preparing for the trip just fine.” Late last year, Biden fractured his right foot while playing with one of his dogs.