In 2015, bomb-throwers in the House Freedom Caucus derailed Kevin McCarthy’s quest to become speaker.
Seven years later, members of the ultraconservative, Trump-aligned group are once again causing major headaches for McCarthy as the California Republican makes another run for the top job.
NBC News has not yet projected which party will control the House, but an estimate modeling the outcome finds Republicans with a slightly better chance. Republicans would have a razor-thin majority should they win.