Why are Republicans fat?

This has bothered me to the point that I can no longer watch CSPAN or CNN.  These people are morbidly obese.  They have five chins.  They look like squirrels saving up for a nuclear winter.  Why can't they spend a couple hours on a treadmill before coming on TV?  Either they look grotesquely fat with some white hair, some gray hair, or with no hair.  It's disturbing, and it's not something a public representative should be representing in this country.   

>>1
The lack of fiber in their diet (fiber is classified as liberal) causes the build up of feces, thus creating the unhealthy condition of morbid obesity.