Austin American-Statesman: That rule gets at the political savvy of Chisum, a Panhandle Republican who was stripped of his power as a budget writer but re-emerged as a pivotal player in the future of Texas’ energy economy. With ever more likely federal rules limiting emissions of carbon dioxide, which have been associated with global warming, Chisum has teamed up with Democrats and some Republicans to make business-friendly proposals that would give subsidies to companies that capture greenhouse gas …