Photos: Donald Trump cancels Chicago rally

Protesters line up above the Eisenhower Expressway after Republican presidential candidate Donald Trump’s campaign stop at the UIC Pavilion was canceled because of security concerns March 11, 2016, in Chicago.

Protesters mock Donald Trump supporters who appeared stuck in the venue’s parking garage after the Republican presidential candidate’s campaign rally March 11, 2016, at UIC Pavilion was canceled because of security concerns.

A protester blows smoke on a Donald Trump supporter outside the Trump International Hotel & Tower on March 11, 2016, in Chicago.

Donald Trump supporters and protesters clash March 11, 2016, outside the UIC Pavilion after the rally for the Republican presidential candidate was canceled.

Donald Trump supporter Birgitt Peterson, center, of Yorkville, argues with protesters on March 11, 2016, outside the UIC Pavilion after the rally for the Republican presidential candidate was canceled.

Protesters speak out during a Donald Trump campaign rally March 11, 2016, inside the UIC Pavilion.

Donald Trump supporters and protesters clash March 11, 2016, outside the UIC Pavilion after the Republican presidential candidate’s rally was canceled.

Protesters celebrate after the rally for Republican presidential candidate Donald Trump was canceled at the UIC Pavilion on March 11, 2016, in Chicago.

Donald Trump supporters and protesters clash March 11, 2016, outside the UIC Pavilion after the rally for the Republican presidential candidate was canceled.

A man leaves the UIC Pavilion on March 11, 2016, after the rally for Republican presidential candidate Donald Trump was canceled because of security concerns.

Donald Trump supporters and protesters clash March 11, 2016, outside the UIC Pavilion after the rally for the Republican presidential candidate was canceled.

A protester shows off ripped Donald Trump campaign signs after it was announced the rally for the Republican presidential candidate was canceled March 11, 2016, at the UIC Pavilion in Chicago.

Protesters celebrate after it was announced that a rally for Republican presidential candidate Donald Trump was canceled March 11, 2016, at the UIC Pavilion in Chicago.

Protesters and Donald Trump supporters struggle outside the UIC Pavilion in Chicago after it was announced that the rally for Republican presidential candidate Donald Trump was canceled March 11, 2016.

Protesters cheer after it was announced Republican presidential candidate Donald Trump’s speech was canceled March 11, 2016, at the UIC Pavilion in Chicago.

An official with the Donald Trump campaign walks away from the lectern after announcing that the event was canceled March 11, 2016, at the UIC Pavilion in Chicago.

A Donald Trump supporter argues with protesters outside the canceled Trump rally March 11, 2016, at the UIC Pavilion in Chicago.

Donald Trump supporters stand outside a Trump rally after it was canceled at the UIC Pavilion on March 11, 2016, in Chicago.

A Donald Trump sign lies on the floor after a campaign rally at the UIC Pavilion for the Republican presidential candidate was canceled March 11, 2016.

Police detain a man as clashes continue outside the Donald Trump rally March 11, 2016, at the UIC Pavilion in Chicago.

A protester holds up a ripped Donald Trump sign before the start of a rally for the Republican presidential candidate at the UIC Pavilion on March 11, 2016, in Chicago.

Protesters gather outside a Donald Trump rally at the UIC Pavilion on March 11, 2016, in Chicago.

A Donald Trump supporter argues with protesters outside a campaign rally at the UIC Pavilion on March 11, 2016, in Chicago.

Donald Trump supporters hold their signs after an announcement canceling the rally for the Republican presidential candidate at the UIC Pavilion on March 11, 2016, in Chicago.

Protesters gather outside a Donald Trump rally at the UIC Pavilion on March 11, 2016, in Chicago.

Donald Trump supporters wait in line outside the UIC Pavilion on March 11, 2016, in Chicago.

Protesters march outside a Donald Trump rally at the UIC Pavilion on March 11, 2016, in Chicago.

Protesters gather outside a Donald Trump rally at the UIC Pavilion on March 11, 2016, in Chicago.

Protesters gather outside a Donald Trump rally at the UIC Pavilion on March 11, 2016, in Chicago.

Donald Trump supporters react after a rally at the UIC Pavilion for the Republican presidential candidate was canceled March 11, 2016.

Protesters wearing shirts reading “Muslims United Against Trump” are escorted out the UIC Pavilion in Chicago prior to the start of a rally for Republican presidential candidate Donald Trump on March 11, 2016.

A demonstrator is removed by Chicago police during a rally for Republican presidential candidate Donald Trump at the UIC Pavilion on March 11, 2016, in Chicago.

A man and a young girl trying to enter the Donald Trump rally ask for an escort from a Chicago police officer as protesters gather outside the UIC Pavilion on March 11, 2016, in Chicago.

Linda Slabaugh, of Romeoville, a nurse and attorney, attends a rally for Republican presidential candidate Donald Trump on March 11, 2016, at the UIC Pavilion.

People wait for the start of a rally for Republican presidential candidate Donald Trump at the UIC Pavilion on March 11, 2016, in Chicago.

People gather at the UIC Pavilion for Republican presidential candidate Donald Trump’s rally March 11, 2016, in Chicago.

A Donald Trump supporter moves a jacket upon getting settled in at the UIC Pavilion for a rally for the Republican presidential candidate March 11, 2016, in Chicago.

Ed Landmichl, of Chicago’s South Side, waits for the start of a rally for Republican presidential candidate Donald Trump at the UIC Pavilion on March 11, 2016, in Chicago.

Donald Trump supporter Valerie Schmitt, of Naperville, gets settled before Republican presidential candidate Donald Trump speaks at a rally at the UIC Pavilion on March 11, 2016, in Chicago.

People wear socks adorned with the U.S. flag while attending a rally for Republican presidential candidate Donald Trump at the UIC Pavilion on March 11, 2016, in Chicago.

People wait for the start of a rally for Republican presidential candidate Donald Trump at the UIC Pavilion on March 11, 2016, in Chicago.

Marco Maltbia, of Chicago’s South Side, waits for the beginning of a rally for Republican presidential candidate Donald Trump at the UIC Pavilion on March 11, 2016, in Chicago.

People arrive for a campaign rally at the UIC Pavilion on March 11, 2016, to support Republican presidential candidate Donald Trump.

Brian Wilkinson, 35, holds an American flag while Donald Trump supporters enter the UIC Pavilion on March 11, 2016, prior to the Republican presidential candidate’s rally.

Donald Trump supporters line up March 11, 2016, at the UIC Pavilion in advance of a political rally.

Button vendors Lorie Levi, left, and Deanne Golembiewski sell Donald Trump for President buttons outside the UIC Pavilion on March 11, 2016, in Chicago.

Jack Righeima, 15, left, and Andrew Alessia, 18, students from Aurora Central Catholic High School, play Trump the Game on March 11, 2016, outside the UIC Pavilion in Chicago.

June Pitts, center, of Oak Forest, waits in line outside the UIC Pavilion on March 11, 2016.

Robert Maricle, of Peoria, stands in line outside the UIC Pavilion on March 11, 2016, for a rally with Republican presidential candidate Donald Trump.

Donald Trump supporter John Gora, of Chicago, proudly shows his T-shirt that reads “Friends Don’t Let Friends Vote Democrat” as he stands in line outside the UIC Pavilion on March 11, 2016, in Chicago for a rally with the Republican presidential candidate.

Julie Contreras, from left; her daughter Ariana Aprim, 18; Salvador Contreras; and Gilberto Melchor-Sanchez hold a prayer vigil March 11, 2016, across the street from the UIC Pavilion in Chicago. The group, representing the League of United Latin American Citizens, is holding the vigil in anticipation of Donald Trump’s presidential campaign stop.

Ariana Aprim, 18, with the League of United Latin American Citizens, shuts off electric lights at the site of a prayer vigil March 11, 2016, near the UIC Pavilion in Chicago.

A small shrine is placed at the site of a prayer vigil across the street from the UIC Pavilion on March 11, 2016, in Chicago.

Julie Contreras, with the League of United Latin American Citizens, sets up a sign near a prayer vigil across the street from the UIC Pavilion on March 11, 2016, in Chicago. Activists assembled in anticipation of Donald Trump’s presidential campaign stop in the evening.

Kayla Utley, left, of Center Point, Iowa, holds a photograph of herself with Republican presidential candidate Donald Trump from a campaign stop as she stands in line outside the UIC Pavilion on March 11, 2016, in Chicago. With Utley are Trump supporters Giovanni Montalbano, center, of Park Ridge, and Travis Klinefelter, of Dubuque, Iowa.