SOUTH BEND, Ind. (AP) — Karen DePaepe had been waiting all day for a call back from Pete Buttigieg. It was March 2012, and the 30-year-old mayor of South Bend, Indiana, had just decided to replace the city’s first African American police chief over complaints that he illegally wiretapped police officers’ phone calls. DePaepe, who oversaw the department’s phone system, had called the…