The gaffe comes as both Biden, Trump, and members of Congress face criticism for their advanced age.
Minutes later, according to a White House media pool report, Biden shared the story again "nearly word for word."
As the White House pool report notes, he said that "though he looked 30, he knew why people talked about it - and said he believed that the nation could still be united."
AdvertisementAdvertisementWhile Republicans have repeatedly attacked Biden for his age, Trump, who's mercilessly attacked Biden throughout his presidency online and in interviews, isn't going after the 46th president over his age.
AdvertisementAdvertisementThe White House did not immediately respond to Insider's request for comment.
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