Students at Yarmouth High School participate in a walkout to protest gun violence, Wednesday, March 14, 2018, in Yarmouth, Maine. Leaders of the rally address the crowd from the back of a pick-up truck in front of the school. Yarmouth is one of the few schools in Maine that did not cancel school on Wednesday as the state digs out from the third major winter storm in two weeks. (AP Photo/Robert F. Bukaty)
Students at Yarmouth High School participate in a walkout to protest gun violence, Wednesday, March 14, 2018, in Yarmouth, Maine. Leaders of the rally address the crowd from the back of a pick-up truck in front of the school. Yarmouth is one of the few schools in Maine that did not cancel school on Wednesday as the state digs out from the third major winter storm in two weeks. (AP Photo/Robert F. Bukaty)