They do; I thought that this was common knowledge. A quick example from a few years ago http://content.time.com/time/magazine/article/0,9171,135999,00.html htt

They do; I thought that this was common knowledge. A quick example from a few years ago http://content.time.com/time/magazine/article/0,9171,135999,00.html http://content.time.com/time/magazine/article/0,9171,135999,... See also last election.