Counting the number of people at major public events is as much art ... Inauguration of President Barack Obama and Vice President Joe Biden on January 20, 2009 (Photo by Da Experts estimate crowd ...

Counting crowds on the National Mall is still as much art as science. These counting challenges become especially significant when the numbers carry political weight. Inauguration crowd numbers ...

Crowd-size experts estimate the number of people on the National Mall for Obama's first inauguration was between 800,000 and 1 million. Trump drew about a third of that total in 2017 ...

Barack Obama asked George W. Bush how they could “stop what’s happening” during President Trump’s inauguration on ... “Good to see you,” as the crowd bursts into a boisterous bout ...

open image in gallery The inauguration of Barack Obama in 2009 holds the record for inaugural crowd size, clocking in at an estimated 1.8 million people. (AFP via Getty Images) Crowd scientist and ...

Experts agree that estimating inaugural crowd sizes has many challenges ... Counting the number of people at major public events is as much art as science. Due to a 1995 controversy over the ...