It was just two months into his term that President Joe Biden sparked concerns by tripping and falling on the stairs of Air Force One.
Since then, it has been a downward trajectory when it comes to incidents where the oldest president in U.S. history has lost his balance or hit the floor.
Biden, 80, will be hitting the campaign trail trying to persuade most Americans – and even many Democrats – that he is up for the job a second time around.
And his latest fall at the Air Force Academy in Colorado, where he had to be helped back up, will raise more questions.
A Washington Post-ABC News poll conducted in May found just one third of Americans believe Biden is in good enough physical health for the job and six in 10 said he does not have the mental sharpness.
Doctors have determined he is healthy, but have said his gait remains ‘stiff’ and it could get worse as time goes on.
Biden looks back at a sandbag after he fell on the stage at the Air Force Academy Graduation Ceremony in Colorado on Thursday
Age has already become a central issue of the 2024 campaign, with Republican contender Nikki Haley calling for all politicians over 75 – including 76-year-old Donald Trump – to be subjected to ‘competency tests’.
DailyMail.com has broken down some of the incidents that have sparked worries about Biden.
MARCH 2021: Biden stumbles up the stairs while boarding Air Force One
Biden, then 78, was boarding the aircraft at Joint Base Andrews just before noon for a flight to Atlanta when he stumbled.
He gripped onto the railing, steadied himself and kept going but lost his footing a second time and then a third.
On the third trip, he fell to his knees. He got back up then carried on up the stairs before giving a salute at the top then disappearing into the aircraft.
Once on the plane, White House Deputy Press Secretary Karine Jean-Pierre told reporters that he was ‘100 percent fine’.
The White House blamed the wind. But it wasn’t the only time he would struggle navigating the steps that have proved tricky for his predecessors, including Gerald Ford.
While visiting Austria in 1975, Ford’s knee gave way and he tumbled down the Air Force One steps.
MARCH 2021: Biden’s first stumble as he bounded up the stairs of Air Force One. The White House blamed the wind for his struggles
He was on his way to Atlanta when he hit the steps, just two months after his inauguration
JUNE 2022: Biden falls off his bike in Rehoboth Beach, Delaware
Biden was at his beach house with Jill for the weekend when he went out for a bike ride and stopped briefly to answer questions from the press.
He was stopped in front of a group of reporters when he topped to the side and hit the tarmac.
Gasps could be heard as he lay on the ground for 10 seconds before being helped up by the Secret Service.
The White House later said his foot got caught on a pedal while he was trying to dismount and he wasn’t hurt.
Biden, the US oldest-ever president, is pictured sitting on the pavement after the fall, which transpired around 9:30 am Saturday, caught up in the bike’s frame
Gasps rang out after the president unexpectedly fell Saturday as he was trying to dismount his bike to chat with a crowd who had gathered along a Rehoboth Beach bike path
MAY 2022: Biden nearly falls while walking up the stairs of Air Force One on his way to Illinois
Biden was on his way to Illinois to discuss the recent downtick in – but still at a 40-year high – inflation, when he again slipped as he entered Air Force One.
He managed to regain his composure, however, and did not hit the ground.
Biden is known to take pride in keeping in shape.
He works out every morning with a trainer, focusing on weights and strength training.
He is an avid cyclist, regularly riding around his Delaware home.
And during the work day he will often step outside for some air and a stroll around the grounds, frequently accompanied by his German Shepherd puppy, Commander, who he welcome to the family in December 2021.
FEBRUARY 2023: Biden stumbles on the Air Force One stairs on the way back to the U.S. from Ukraine and Poland
Biden was ending a visit to Europe when he nearly fell on Air Force One’s steps.
The 80-year-old was climbing the steps with his customary vigor when he misplaced his footing.
He did not fall, however, and used his hands to support himself.
FEBRUARY 2023: Biden concluded his *trip* to Ukraine and Poland by falling up the stairs of Air Force One as he was headed back to the United States
MARCH 2023: Biden briefly stumbles while boarding a flight to Selma, Alabama
One of Biden’s brief wobbles on the stairs came during a trip to Alabama.
He was walking up the Air Force One steps when he appeared to lose his balance, and carried on.
President Joe Biden once again had trouble navigating Air Force One’s stairs – briefly stumbling as he boarded the presidential aircraft Sunday as he departed from Selma, Alabama
MAY 2023: Biden trips while walking on the stairs at the Itsukushima Shrine in Japan
Biden tripped as he walked down the stairs of the Itsukushima Shrine in his rush to greet Japanese Prime Minister Fumio Kishida.
The president was running late – all the other G7 leaders had arrived on Miyajima Island and were waiting on him to begin the tour of the holy site – when he stumbled and caught himself before he fell.
He and Kishida continued on as if the slip didn’t happen, joining the rest of the heads of state to see the iconic ‘floating’ torii gate.
The evening on the famous island, known for its wild deer, capped the end of a long first day of the summit.
After the tour, the world leaders – the heads of the United States, Japan, Canada, Italy, France, Germany, the United Kingdom and European Union – had a private dinner on the island.
President Joe Biden tripped as he walked down the stairs of the Itsukushima Shrine
