Graham RahalIndyCar Texas Winner Graham Rahal won a dramatic victory at Texas Motor Speedway Saturday night. He only led one lap in the race and that was the most important one, the last lap. He passed the dominate driver in the race less than half a lap from the finish. The margin of victory was only .008, the fifth closest finish in IndyCar history. Some would call it storybook. The race itself was the completion of a race that was started June 12th but was postponed after 71 laps because of heavy rain. Saturday night was intense. Listen…