Gun Rights Activist Lauren Boebert Upsets Congressman in Colorado Primary

Owner Lauren Boebert poses for a portrait at Shooters Grill in Rifle, Colo., on April 24, 2018. Emily Kask/AFP via Getty Images

Political newcomer Lauren Boebert, who gained fame after confronting Beto O'Rourke over his stance on guns last year, beat U.S. Rep. Scott Tipton (R-Colo.) in a primary on Tuesday.

Boebert had a lead of nearly 10,000 votes with most precincts reporting.