Scott Sperry jotted his name down on a sign-up sheet. The 22-year-old student at Utah Valley University had watched Charlie Kirk's videos for years and credits the conservative firebrand with being a catalyst in his own political involvement.

Colleges are often the setting, and the target, of the nation’s most heated politics. Charlie Kirk’s work on campuses was one factor.

Political violence is hardly unprecedented in the United States. In fact, the country has “a long, dark history” of violence that has “struck the highest level of American politics,” said Kevin Boyle, a Northwestern University historian.

Former military intelligence officer Vedran Maslic discusses the future of political discourse within America and how both sides of politics are drifting further apart. “People are being punished for speaking out,

Fight” has become such a political prerequisite that it seems no campaign launch video is complete without it, and candidates know activists expect to hear it.