 Democratic U.S. Senator John Tester recently rallied a specific group of supporters in Kalispell in northwest Montana. I take my instructions from veterans. Two dozen veterans met with Tester to launch Veterans for Tester in support of the incumbent's reelection campaign for a fourth term. Tester has long focused on veterans' issues, although he didn't serve in the military. He worked his way up to chair the Senate Veterans Affairs Committee. Veterans across Montana...