The Second Amendment got attacked this week from three sides, leaving gun owners scrambling to find safe ground. While President Obama has lost momentum for federal gun-control laws, he has picked up victories with his allies in blue states and at the United Nations. After Thursday, Connecticut should consider changing its state nickname from the “Constitution State” to the “Unconstitutional State” after Gov. Dannel Malloy signed an extremely restrictive gun-control law. The bill passed the state House Thursday morning and the Senate on Wednesday. Before the Newtown tragedy, the Brady Campaign determined that Connecticut was the fifth highest-rated state for...