Widely shared photo of Biden without mask was taken in 2019

In this photo taken in November 2019, former Vice President Joe Biden speaks with his traveling national press secretary, Remi Yamamoto, on a flight to South Carolina. Richard Grenell, President Donald Trump's former ambassador to Germany and former acting director of national intelligence, tweeted this photo on Sunday, Nov. 1, 2020, alongside a photo of Biden standing outdoors while wearing a mask. The tweet, which claims that Biden wears a mask outside but doesn't wear one on his plane, creates the false impression that this photo of Biden without a mask was taken during the coronavirus pandemic. (Adam Schultz/Biden for President via AP)