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On Friday night, Donald Trump attempted to hold a rally for his presidential campaign in Chicago. People in Chicago decided they didn't want Donald Trump holding rallies in their city, so thousands of them took over the venue where the rally was set to happen. Trump canceled the rally before it had even started. (He later said that the police told him to cancel it, but that wasn't true.)

When the news hit that the protesters had won, they started chanting lines from Kendrick Lamar's "Alright":

I was interviewing protesters when they announced Trump had cancelled. This is what it looked like #trumpprotest pic.twitter.com/T09r4sawEj

— Martin Gelin (@M_Gelin) March 12, 2016

Protesters also took to the streets.

There were some violent scuffles between Trump fans and the protesters. Violence has been a theme running through many of Trump's rallies; he has a history of encouraging it, though he insisted in a series of interviews on Friday that he didn't want to see any of it happening.

Below, see some more images from the protests.

CHICAGO, IL - MARCH 11: Demonstrators celebrate after it was announced that a rally with Republican presidential candidate Donald Trump at the University of Illinois at Chicago would be postponed on March 11, 2016 in Chicago, Illinois. Organizers postponed the rally citing safety reasons after hundreds of demonstrators were ticketed for the event. (Photo by Scott Olson/Getty Images)
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CHICAGO, IL - MARCH 11: A protester burns a flag outside of the University of Illinois at Chicago Pavilion where Republican presidential candidate Donald Trump is due to speak at a campaign rally March 11, 2016 in Chicago, Illinois. The rally was later cancelled for safety concerns. (Photo by Jonathan Gibby/Getty Images)
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CHICAGO, IL - MARCH 11: Protesters rally outside of the University of Illinois at Chicago Pavilion where Republican presidential candidate Donald Trump is due to speak at a campaign rally March 11, 2016 in Chicago, Illinois. The rally was later cancelled for safety concerns. (Photo by Jonathan Gibby/Getty Images)
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CHICAGO, IL - MARCH 11: Protesters rally outside of the University of Illinois at Chicago Pavilion where Republican presidential candidate Donald Trump is due to speak at a campaign rally March 11, 2016 in Chicago, Illinois. The rally was later cancelled for safety concerns. (Photo by Jonathan Gibby/Getty Images)
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CHICAGO, IL - MARCH 11: Protesters rally outside of the University of Illinois at Chicago Pavilion where Republican presidential candidate Donald Trump is due to speak at a campaign rally March 11, 2016 in Chicago, Illinois. The rally was later cancelled for safety concerns. (Photo by Jonathan Gibby/Getty Images)
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CHICAGO, IL - MARCH 11: Protesters lay down in the path of a car attempting to exist the University of Illinois at Chicago Pavilion where Republican presidential candidate Donald Trump cancelled a campaign rally over safety concerns March 11, 2016 in Chicago, Illinois. The Illinois Republican presidential primary will be held March 15. (Photo by Jonathan Gibby/Getty Images)
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CHICAGO, IL - MARCH 11: Demonstrators react after learning a rally for Republican presidential candidate Donald Trump at the University of Illinois at Chicago would be postponed on March 11, 2016 in Chicago, Illinois. The campaign decided to postpone the rally, citing safety concerns, after learning hundreds of demonstrators were given tickets for the event. (Photo by Scott Olson/Getty Images)
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CHICAGO, IL - MARCH 11: Demonstrators taunt supporters of Republican presidential candidate Donald Trump as they leave a rally at the University of Illinois at Chicago which was postponed on March 11, 2016 in Chicago, Illinois. Organizers postponed the rally citing safety reasons after hundreds of demonstrators were ticketed for the event. (Photo by Scott Olson/Getty Images)
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