I guess my only worry is about the audience, I am sure that if they are undecideds that they would have to almost by nature of that, since they have had 4 years to judge bush, leaning Kerry. Just my gut feeling nothing scientific.....
There will be 15 or so questioners who are sworn to be undecided. They won't be vetted for Liberal versus Conservative versus Socialist, though obvious Christians will be scarce. Expect multicultural aspects.