<img src="https://pbs.twimg.com/media/Cvouyz0XEAACgY2.jpg:large" width="100%">
Resize the window to see the effect.
Are they dragging in folks with dementia to fill out the crowd? What is up with the guy in the pink cap?
If you do the training on fotoforensics.org, you should be able to see where the photo is obviously edited. http://fotoforensics.com/analysis.php?id=499fec7f9c7fd4fc6ddc124cdea5041bc38480d3.379445