karen travis has this story. >> reporter: it was a call to action. >> welcome to the revolution. >> reporter: in the shadow of the u.s. capitol, students from stoneman douglas across the nation making a passionate plea for an end to gun violence. >> this is not a red versus blue issue. this is a morals issue. >> reporter: the most powerful moment was silence. student emma gonzalez reading the names of classmates who were killed and then pausing to wait unt until 6:20 passed. the same amount of time as the massacre in her school. >> fight for your lives before it is someone else's job. >> reporter: the rally was a response to the parkland, florida, shooting, killing 14 students and two coaches and a teachers. and calls to end violence and protect kids in their communities. >> gun violence is more than just a chicago problem or a parkland problem, it is an american problem. >> reporter: the stories were personal and the messages political. >> to those politicians supported by the nra that allow the continues slaughter of our children and our future, say get your resumes ready. >> reporter: a r