Republican President Donald Trump lashed out Friday night at Democratic Gov. J.B. Pritzker and Mayor Lori Lightfoot over Chicago’s gun violence, saying the two had put their “own political interests” ahead of the lives of residents and insisting that “law and order” was needed. In a letter, Trump also used the violence issue as a jumping off point to attack the state and city for high taxes and burdensome regulations, contending Pritzker and Lightfoot’s “insatiable appetite” for taxes has led people to flee Illinois. A Pritzker spokeswoman said Trump’s letter was a “press stunt” aimed at serving as a distraction...