Saturday, President Obama held a rally in Milwaukee at the 5,000 seat BMO Harris Pavillion. You wouldn't know that if you read any national stories on this, as Politico and the Wall Street Journal all reported a crowd of 18,000. As the video shows, there's no way 18,000 people are there, even if every seat was filled and the standing area (which can accomodate another 5,000) was filled, there aren't 8,000 more people there. Not to mention that the Milwaukee Journal Sentinel put the crowd at 5,000.
Thanks to Liveleak user buzzardist for the video.