“A president stands out there when people are peacefully protesting in front of the White House,” Mr. Biden, the Democratic presidential nominee, said. “He gets the military to go in for tear gas, move people physically, move them out of the way so he can walk across to a Protestant church and hold a Bible upside down.”
After law enforcement dispersed protesters in the square, Mr. Trump walked from the White House to a church damaged by fire and posed for photos while holding a Bible a little after 7 p.m.
A Twitter user speculated at 7:10 p.m. that evening that the Bible was upside down. Within minutes, the conjecture spread as fact, with the MSNBC host Joe Scarborough tweeting the claim to millions of followers. It then migrated to Facebook, where a post from a partisan website that has previously spread misleading information has been shared and engaged with more than 75,000 times.
Three months later, Mr. Biden repeated the false claim.