So says George Stephanopoulos:

Elisabeth Hasselbeck: “What about the media coverage obviously, has been incredibly, some would say, biased in terms of their coverage. Do you agree with that? I mean 63 percent of the stories, they weighed it out, have been negative against John McCain and Sarah Palin.”
George Stephanopoulos: “The problem with that is the last couple of months the campaign hasn’t been doing so well. When you don’t do so well, you get more negative stories.”