<p>INDIANAPOLIS -- It was 5:45 a.m. when I arrived, tired and a little cranky, at Rep. Julia Carson's home. It was dark and chilly, and my cotton raincoat proved entirely inadequate. But I forgot about all that as I approached the scene in front of her modest residence. Vans and SUVs were pulling in and out of the driveway, and scores of volunteers were funneling into the large garage attached to the house.</p>