But don't worry, folks, because there's a very logical reason for his fall: a sandbag.
Yes, that's right, Biden apparently tripped over a bag filled with sand.
From Associated Press:
President Joe Biden quipped that he got “sandbagged” Thursday after he tripped and fell — but was uninjured — while onstage at the U.S. Air Force Academy graduation.
Biden had been greeting the graduates in Colorado Springs, Colorado, at the front of the stage with salutes and handshakes, and turned to jog back toward his seat when he fell. He was helped up by an Air Force officer as well as two members of his U.S. Secret Service detail.
Onlookers, including some members of the official delegation onstage, watched in concern before Biden, who at age 80 is the oldest president in U.S. history, returned to his seat to view the end of the ceremony.
“I got sandbagged,” the president told reporters with a smile when he arrived back at the White House on Thursday evening before pretending to jog into the residence. Two small black sandbags had been onstage supporting the teleprompter used by Biden and other speakers at the graduation.
Whether Biden actually tripped over this supposed "sandbag" or not, we've seen plenty of examples where he's had no obstacles during a fall.
Pair this with the constant look of bewilderment on his face, and it's clear that there's something off with Biden both physically and mentally.