The International Association of Chiefs of Police is the world's largest professional association for police leaders. He turned to Chicago as an example of major city with a crime problem.
On that topic in Orlando today, he concluded that portion of his remarks by saying, "so Chicago, we are going to start working with you as of today".
He did say that he had directed the U.S. Attorney General's office to "immediately go to the great city ion Chicago to help straighten out the awful shooting wave". "So it works. Gotta be properly applied, but stop and frisk works".
"No, I don't. No", Trump said when asked.
"I've told them to work with local authorities to try to change the bad deal the City of Chicago entered into with ACLU which ties law enforcement's hands and to strongly consider stop and frisk".
Chicago police officials said they doubted that conversation ever took place.
Rod Rosenstein, despite reports he discussed secretly taping President Donald Trump with the goal or removing him from office, is still the deputy attorney general after the two men spoke aboard Air Force One.
Apple Blocking Third-Party Repairs on the New MacBook Pro
Updated on 10/06/18: Updated with iFixIt's report that the software locks aren't in place yet. Otherwise, the device will be rendered an "an inoperative system and an incomplete fix ".
Chicago police said last week that there have been 102 fewer homicides and almost 500 fewer shooting victims in the city this year, compared to the first nine months of 2017. "No I don't, no", he said.
But even as Trump has chose to leave Rosenstein in place - for now - the matter of what Rosenstein said and proposed doing likely will remain a political issues heading into the homestretch of the midterms - and beyond.
In August 2015, the ACLU pressed for expanded reporting on investigatory stops in Chicago after releasing a study showing minorities have been predominately targeted for stops here.
But the Fraternal Order of Police argued again after a weekend bloodbath in August that the last round of changes made in January 2017 would not be enough to reverse an 80 percent drop in street stops.
The August FOP blog post pointed to an academic study by University of Utah researchers, entitled "The ACLU Effect".
This is the largest gathering of police leaders, displaying the latest technology.
Trump's speech to the gathering of police chiefs comes on the heels of a new Federal Bureau of Investigation report that the number of homicides and other violent crimes dipped slightly in the United States last year, suggesting the rise of violent crimes in recent years may be ending.