RACINE — A 9-year-old elementary school student in Wisconsin may have saved the life of a classmate by performing the Heimlich maneuver on her as she choked on food, authorities said.Essie Collier, a fourth-grader at Racine’s Fratt Elementary School, noticed one of her classmates was in distress during lunch this past Tuesday.Students were eating in a classroom because the lunchroom had been cleared out so residents could vote.“I just saw that she was holding her neck, and I rushed up there as fast as I can,” Essie said.Teacher Samantha Bradshaw said Essie wrapped her arms around the student and began performing the Heimlich."