A 16-year Republican veteran of the Legislature wrote Gov. Greg Abbott saying he is appalled that the governor has given credence to a fringe group that fears the U.S. military would stage a take-over of Texas. Abbott has ordered the Texas state Guard to monitor a large-scale, eight-week military exercise this summer of special operation forces. Social media has pushed the conspiracy notion that the exercise, called Jade Helm 15, is a ruse to confiscate guns and declare martial law in hostile states. After citizens raised concerns, Abbott said the state Guard will keep tabs on the operation to ensure...