>> CHICAGO POLICE OFFICER IS BEING PRAISED FOR THE WAY THEY RESPONDED TO THE PROTESTS DURING THE DNC AND WGN'S ANGELICA SANCHEZ IS AT CITY HALL WHERE CHICAGO OFFICIALS CELEBRATING THE WAY IT HANDLED HOSTING THE MAJOR POLITICAL EVENT. >> CHICAGO MAYOR BRANDON JOHNSON SUPERINTENDENT LARRY SNELLING SAY NUMBERS SHOW WHAT MADE THE CNC A SUCCESS. THIS IS CHICAGO IS NO LONGER LIVING IN THE PAST. >> THERE WERE INDIVIDUALS WHO ARE ROOTING AGAINST CHICAGO AND THEY WERE ROOTING FOR VIOLENCE AND CHAOS. >> MORE THAN A YEAR OF PLANNING AND PREPARING LED UP TO A HISTORIC 4 DAYS IN THE WINDY CITY. CHICAGO MAYOR BRANDON JOHNSON SMILING FRIDAY MORNING. AS HE THANKED ALL CITY WORKERS AND FIRST RESPONDERS. HE CALLED THE 2024 DEMOCRATIC CONVENTION A SUCCESS. >> IN THE WORDS OF SKY INJURIES. >> WHAT THEY GONNA SAY NOW, CHICAGO, WE DID. >> THE MAYOR RELEASED A VIDEO IN CELEBRATION. HE SAYS THE CONVENTION BROUGHT MILLIONS IN INVESTMENTS ALONG WITH MORE THAN 50,000 VISITORS. HE SAYS THE SHADOW CAST BY THE 1968 DNC IS NO MORE. >> IF THE 1968 CONVENTION. WHEN DOWN IN HISTORY AS THE EXAMPLE OF POLICE BRUTALITY, THEN THE 2024 CONVENTION. WE'LL GO DOWN. AS THE EXAMPLE OF CONSTITUTIONAL POLICING. >> SUPERINTENDENT LARRY SNELLING SAYS PROTEST CROWDS HOVERED BETWEEN 3,000 TO 4,000 PEOPLE. THIS IS FAR LOWER THAN THE 10'S OF THOUSANDS PROJECTED EARLY ON BY PROTEST ORGANIZERS. >> WE SET OUT TO MAKE SURE THAT WE KEPT THE CITY SAFE. WHILE PROTECTING FIRST AMENDMENT ACTIVITY. AND WE DID JUST THAT. >> BY THE NUMBERS, SNELLING SAYS THERE WERE 74 ARRESTS RELATED TO THE NC PROTEST. HE SAYS 4 PEOPLE WERE SENT TO AREA HOSPITALS FOR MEDICATION REASONS. 3 OTHERS FOR MINOR INJURIES, INCLUDING A FINGER INJURY AND PAIN TO A NEED. HE SAYS A FEW CHICAGO POLICE OFFICERS ALSO SUFFERED INJURIES. BUT OFFICERS REFUSE TREATMENT BECAUSE IT DID NOT WANT TO LEAVE THEIR FELLOW OFFICERS BEHIND. I CANNOT SAY ENOUGH ABOUT THE WORK THAT OUR OFFICERS DID OUT THERE. >> WE SAT AND WE WATCH THESE OFFICERS GO THROUGH IT. WE SAW PEOPLE YELLING THEIR FACES YELLING OBSCENITIES. >> AND THEY MAINTAIN THEIR COOL THROUGHOUT. THEY DIDN'T TAKE THE BAIT. >> SECRET SERVICE OFFICIALS SAY FOR A CONVENTION OF THIS SIZE, CHICAGO DELIVERED. I HAVE BEEN SAYING FOR MOST OF THE PAST YEAR THAT THE CITY OF CHICAGO IS A PRO. WHEN IT COMES TO PUTTING ON LARGE SCALE EVENTS. LOLLAPALOOZA THE CHICAGO MARATHON, NASCAR AND NOW WE CAN ADD THE 2024 DEMOCRATIC NATIONAL CONVENTION TO THAT LIST. >> BRÓNAGH TUMULTY: NOW SNOWING SAYS THAT SO FAR LESS THAN 10 COMPLAINTS HAVE BEEN FILED AGAINST CPD DURING THE 4 DAYS OF THE CONVENTION. HE SAYS THE HANDFUL OF