President Bush could not be President had he been dishonorably discharged. He was honorably discharged. Obligation fulfilled doing 'homeland security' drills in a fighter interceptor. Game, set, and match.
People are VERY willing to focus on the President's demonstrated ability to lead in times of crisis, rather than worry about 1972.
OTOH, John Kerry's claim to fame is his infamy, He brought the era up, and for him it is a rank kettle of worms indeed.
You will never convince the 27% 'true believers' and hardcore 'anyone but Bush' crowd.
I don't doubt that among the 'undecided' vote, events like the puke in W VA tearing up the 3 year-old girl's sign will carry as much sway.
Wasn't that awful about that little girl? A friend was out walking with a Bush poster by herself and she was assaulted and pushed to the ground by vile dems. Not only is she disabled, but she is nearly 60 yrs old. They are vile people...very angry.