No, Rep. Alan Grayson—an AR-15 rifle cannot shoot 700 rounds per minute. And CNN’s Erin Burnett did nothing to press him on this outrageous claim during her on-camera interview with him Sunday. Now, the AR-15 wasn’t the rifle used in the Orlando attack, which left 49 people dead in the worst mass shooting in American history. It also was a likely terrorist attack, but let’s discuss these remarks by Grayson because it shows how the anti-gun Left has no clue what they’re talking about.Alan Grayson claims AR-15 can fire 700 rounds per minute, which is ridiculous “If I may just say...