Since the AP won't release the writer's name, perhaps some of the attendees that were libeled by the demonstrably false report should sue - then the reporter's name would be available!
The bush campaign should find out who it is and kick the reporter off the campaign trail - then tell the press they did it because they couldn't sit back while the good people of wisconsin were lied about.
Then bush wins wisconsin in a walk.
Good strategy. I like the way you think.