As a planned Donald Trump rally in Chicago was canceled Friday night, leftist protesters online wasted no time in taking a victory lap for the free-speech shutdown.

Way to go Chicago! Someone finally shutdown a Trump rally! — Pat is now Enraged Fuller Ω 📢 #Unite4Victory (@bannerite) March 12, 2016

The alliance of left-wing protesters included illegal immigration activists working with their comrades in Black Lives Matter. The social justice warriors seem to take special delight in the idea that Americans who had showed up to hear Trump speak now had to face protesters.

Chicago just shut Donald trump rally down!!! #BlackLivesMatter and all other groups !! Thank you — Dr. Zilton 💊 (@PrincessKenKen2) March 12, 2016

VERY SIMPLE.. Protesters were being abused @ these #Trump / KKK rallies. NOT GOING TO STAND FOR THAT BS! #BlackLivesMatter @MSNBC @cnn — Pop (@financejonE) March 12, 2016

Other online activists mocked Donald Trump and compared his event cancellation to the Bernie Sanders event cancellation sparked by two Black Lives Matter activists last year.

Remember how Trump mocks Bernie for allowing the #BlackLivesMatter protestors to speak? #TrumpRally — Earth Muffin (@EarthMuffinHugs) March 12, 2016

https://twitter.com/CarmineSabia/status/708457144950104065

More ominously, others hailed the protesters’ victory against Donald Trump and his supporters as an indication of things to come. Some referenced a planned rally in Cleveland.

It is time for a new movement. We must focus our attention to shut down Trump #ShutDownTrump #BlackLivesMatter — Jerry Ford, Jr., MPP♦️ (@JerryFordJr) March 12, 2016

https://twitter.com/ComradeEadweard/status/708458314942644225

While shutdown of the event will clearly embolden protesters, other online comments show that it will probably also make many of Trump’s “silent majority” voters more resolved than ever.

#BlackLivesMatter just guaranteed a #Trump win in IL. A group that condones violence against those that don't agree with them.#TrumpRally — Josh M (@JG_KB24fan) March 12, 2016

https://twitter.com/jake_bradford_1/status/708459899571859456

A statement by the Trump campaign said, “Mr. Trump just arrived in Chicago and after meeting with law enforcement has determined that for the safety of all of the tens of thousands of people that have gathered in and around the arena, tonight’s rally will be postponed to another date.”

It is unclear at press time how much of a role the Chicago police played in the Trump campaign’s decision.

Follow Breitbart News investigative reporter and Citizen Journalism School founder Lee Stranahan on Twitter at @Stranahan.