U.S. Rep. Joe Barton, a Republican from Ennis, can be frustrating in his doggedness.He tried to get Congress to mandate a college football playoff game. The college honchos devised a system without unnecessary federal intrusion.He keeps trying to get Congress to rescind a requirement that old-style incandescent light bulbs give way to more energy-efficient ones. Meanwhile, the industry and consumers are adapting.He keeps pushing to legalize online poker through an interstate licensing system. As he must, poker-player Barton admits it is "not the most pressing issue for our country."Barton's stubbornness has been beneficial when he's stood up for his district. District 6 encompasses parts of Tarrant, Ellis and Navarro counties.Most notably, in 2009, Barton bucked the GOP to support the Obama administration's plan to give General Motors federal aid during its Chapter 11 bankruptcy reorganization. The automaker's Arlington plant is thriving again.Barton, 63, was first elected in 1984 and is a former chair of the House Energy and Commerce Committee.You'd think critics of a do-little Congress might be frustrated with such a long-termer, but he handily beat three Republican primary challengers.In the general election, he faces Democratic primary winner Kenneth Sanders, 38, of Arlington, a graduate of Dunbar High School in Fort Worth and former Lockheed Martin Aeronautics worker.The Star-Telegram Editorial Board recommends Joe Barton for U.S. House District 6.