Sen. Mark Warner (D-Va.) has an A rating from the National Rifle Association — and a new perspective on gun control since Friday’s mass shooting at a Connecticut elementary school. “I‘ve been a strong supporter of Second Amendment rights,” Warner said Monday outside the Virginia Capitol, where he was attending an unrelated meeting. “I’ve got an A rating from the NRA. But the status quo isn’t acceptable. I’ve got three daughters. They asked me on Friday evening, ‘Dad, what are you gonna do about this?’ There’s got to be a way to put reasonable restrictions, particularly as we look at...