https://www.cbsnews.com/news/trump-photo-op-lafayette-park-protesters-report/
But you can understand how when they clear the park and the president (who is normally treated as higher than everyone else) takes a photo in the same park, it's easy to assume that they cleared the park so the president could take that photo, yes? I'm not saying that's what ACTUALLY happened, just that it's easy to assume that the two events are correlated if you have limited information on the matter.