A crowd-size expert from the U.K. estimates that between 10,000 to 15,000 people attended Saturday's protest in downtown Chicago. But some estimates say 75,000 people gathered downtown.

Calculating crowd size can be a challenge, and estimates for both Trump’s parade and ‘No Kings’ protests vary widely.

Thousands marched and rallied peacefully during the No Kings OKC protest on June 14, the same day as the U.S. Army 250th Anniversary military parade.

A huge crowd of protesters descended on the State Capitol today as part of the nationwide “No Kings Day” rallies against the Trump administration.

A huge and peaceful crowed turned out for the "No Kings" rally, shutting down much of the Loop as part of a nationwide protest movement to denounce the Trump administration.

The mass protest will be focused on the Trump administration's actions that protesters believe are authoritarian and blur the line of democracy.

Thousands of people took to the streets on Saturday across Southern Oregon as a part of the nationwide 'No Kings' protest. Demonstrators said they are speaking out against President Donald Trump and his policies.

The “No Kings” protests in every state may have been the biggest day of demonstrations in American history, a data analyst has suggested. “Based on hundreds of crowd-sourced records of No Kings Day event turnout,