Did former Vice President Joe Biden kneel at an American flag in his hometown while on the campaign trail? No, that's not true: The presumptive Democratic presidential nominee knelt down to talk to a child who was out of frame in many of the camera angles. In a video of the scene, he never mentions an American flag and he can be heard talking to the child while knelt.
The claim appeared in a post (archived here) where it was published by on Facebook on July 11, 2020. It read:
Joe Biden takes a knee after spotting an American flag near his childhood home in Pennsylvania
This is what the post looked like on Facebook at the time of writing:
(Source: Facebook screenshot taken on Thu Jul 30 13:46:04 2020 UTC)
In a photo from Reuters for ABC News, the child is pictured in the foreground:
In a screengrab of the video, Biden can be seen kneeling and asking if the child is 4 years old:
While there is in American flag at the house next door, the presidential nominee makes no reference to it or any other flag as he kneels.