One of the results of decades of one-party rule, as is the case in Texas, is a dulling of intellectual capacities, like a royal family that’s suffering from too much intermarriage. IT KEEPS HAPPENING: AFTER A CAREER COMFORT- ably ensconced in a partisan echo chamber, some Texas wingnut gets called up to Washington, D.C., only to make a fool of themselves on the national stage. Take, for example, Kathleen Hartnett White, a mushy-headed climate denier. During the Rick Perry years, Hartnett White did a tour of duty as the head of the Texas Commission on Environmental Quality, where she never met a coal plant or refinery that wasn’t overregulated. Later, she landed at the corporate-funded Texas Public Policy Foundation as some kind of resident energy expert with a preposterously highfalutin…