Chicago Teachers Union president Karen Lewis speaking at the City Club in April 2016 Credit: Rich Hein /Chicago Sun-Times via AP

Welcome to the Reader‘s morning briefing for Tuesday, September 27, 2016.

  • Weather: Cooler and windy

It will be cool again Tuesday, with a high of 65 and a low of 52. Expect it to be cloudy and a bit windy. [AccuWeather]

  • Chicago Teachers Union votes to authorize strike by a huge majority

The Chicago Teachers Union has authorized a strike in case negotiations between the union and Chicago Public Schools break down. More than 90 percent of union members participated, 96 percent of whom voted in favor. CTU could set a strike date when its house of delegates meets Wednesday; the first possible walkout day would be October 11. The possibility of teacher layoffs is also looming at CPS after student enrollment dropped by 13,800 for the 2016-’17 school year. [Tribune] [DNAinfo Chicago]

  • Donald and Ivanka Trump in town Wednesday for fund-raisers

GOP presidential nominee Donald Trump and his daughter Ivanka are scheduled to appear at a lunchtime fund-raiser at the Bolingbook Golf Club Wednesday. Ivanka will then host another fund-raiser in Chicago with former Bears coach Mike Ditka at the home of former Fruit of Loom CEO William F. Farley and his wife, Shelley. Chelsea Clinton, the daughter of Democratic presidential nominee Hillary Clinton, reportedly attended a fund-raiser last week at the Chicago home of Gone Girl author Gillian Flynn and her attorney husband. [Sun-Times] [NBC Chicago]

  • CPD: Fatal shooting near Millennium Park started with argument about religion

Berwyn resident Peter Fabbri, 54, was shot Saturday night near Millennium Park after an argument about religion, according to the Chicago Police Department. Fabbri, who was a Christian, felt that a group preaching and handing out pamphlets on the street was being hateful and an argument ensued, authorities said. Then Paul Pagan allegedly approached Fabbri on a bike and shot him. Pagan was charged with the murder Monday. [DNAinfo Chicago]

  • Los Angeles police are investigating Derrick Rose over sexual assault allegations

Former Bulls star and Chicago native Derrick Rose, now with the New York Knicks, is under criminal investigation by the Los Angeles Police Department in connection with an alleged sexual assault dating from 2013. An unnamed woman (whom a judge recently ruled cannot remain anonymous) has sued Rose in civil court, claiming that he and two of his friends gang-raped her at her LA home. The trial is set to start on October 4, but this is the first criminal investigation into the incident. [Washington Post]

  • Rick Bayless sells his Frontera Foods line to ConAgra

Topolobampo and Frontera chef Rick Bayless has sold his Frontera Foods line of packaged food to ConAgra. The massive processed-foods company recently moved its headquarters to Chicago from Omaha, but Frontera Foods will continue to be based here. [Sun-Times]