???It all started with Heath Shuler and Paul Ryan,??? said Horton. ???They???d go into the congressional gym, and they were doing P90X while everybody else was sitting on the elliptical or treadmill or working with a trainer. ??? For most folks, all you need is a pull-up bar and a floor and a couple of dumbbells or bands. ??? There???s so much pressure in this town, so it???s a form of release oth