Donald Trump Jr., the son of former US President Donald Trump, doubted that the current US leader Joe Biden tripped on the presidential plane ladder three times due to strong winds.

The White House attributed the incident to strong winds. Spokeswoman Karine Jean-Pierre said it was “very windy,” and she “almost fell” herself. She assured that Biden “feels great.”

Trump Jr. on Twitter attached a screenshot showing that the wind speed was about 6 meters per second. According to the US Weather Service, such a wind “raises dust and paper” and “stirs small branches.” Trump’s son sneered in his comment that the president is “in great shape.”