Rep. Martha McSally (R-Ariz.) on Friday released a video of her Arizona Senate race opponent, Rep. Kirsten Sinema (D), referring to Arizona's legislature as the "meth lab" of democracy during a Netroots Nation address in 2011. "You can see in this very quote that the states are laboratories of democracy," Sinema says in the video, gesturing to a slideshow that is offscreen. "And my state, Arizona, is clearly the meth lab of democracy." It was unclear under what context Sinema made the comment, which elicits laughter and cheers from the audience. "I cannot take credit for that line. Somebody at...