There is a sixty percent chance that Republicans will rain on your weekend plans. The Weather Channel hasn't yet gone quite that far to inject politics into weather reporting but they sure seem to be working on it. Their reporting on Tropical Storm Isaac has brought out the inner liberal of a channel that was once noted for its complete professionalism but, sadly, seems to be going off into political tangents completely unrelated to the weather. In the first example, they republish a highly biased Associated Press article on their Weather Channel site which touches on Tropical Storm Isaac but...