text:  It was a very potent one, too, right? I mean, it was pretty dependable, a pretty good predictor of what political affiliation they had was how they viewed the AR-15, because it had been just filled up with so much cultural significance that you could reliably tell how someone would vote based on their attitude towards this one gun. So the Washington Post series describes the AR-15 as having become a political symbol in campaigns. How has it been used that way?