The Election Of 2004

In my Political Gov. class, we are disscusing the Election of 2004 and the reason why John Kerry lost this election. The process my class is using to assses this question is through a trial. The class is divided into five groups: John Kerry, The Democratci National Convention, the Swift Boat Veterans for truth or the 527, the News Media and the Electoral system. Each group is supposed to defend the group that they are assigned to. My group was assigned to defend the media, and how it was not the media's fault for John Kerry's lose in the election of 2004. Which group out of the one stated (John Kerry, the DNC, The Swift Boat Veterans for truth or known as the 527, the news Media and the Electoral system) do you believe is the reason why John Kerry lost the 2004 Presidential Election? and why?