"For the safety of all the tens of thousands who have people that have gathered in and around the arena, tonight's rally will be postponed until another date," Trump's announcer said at the rally.
"When it's announced that the Trump rally is postponed, Trump is not coming out to speak. You see this amazing overwhelming happiness from those who are not Trump supporters. ... Now you also see real anger and the racist remarks intensify," Brown said.
"I got up there and I said, America's already great without the hate," Brown said.
Things only got more hectic for Brown after he rushed the stage.
"I was definitely called the N-word a whole lot. ... I had a gentleman throw a water bottle at me ... I had another gentleman jump on my back, put me in that chokehold ... it was exactly what was portrayed in the media times 22,000," Brown said.
"The thing that sticks with me the most is the level of unity and the effect that it had. ... You had Hispanics, you had Muslims, you had women, you had men ... that were all together saying. We're not for the hatred this campaign spews out," Brown said of the crowd at the rally.
"We did that, not just for Chicago but for the world, and I'm very happy about it," Brown said.
This video includes clips from, KTVU, Conservative Outfitters, WLS-TV, CNN and US Uncut and images from Getty Images.