The only reason conservatives have a hold on AM radio is because the liberal network completely failed. They had to buy radio stations, just to get their message out. Those radio stations then went out of business. Their kings of entertainment (Franken for instance) just couldn't get the same kind of crowd that Rush or Savage can get. Now, if the "liberal" message was one more people could identify with, then they would get the advertisers and distribution that the "conservatives" get.