As I understand things, Blackwell is a real standup Republican who stood up to the DEMOCRATIC machine in 04. He's a big reason that Bush won his second term. The slant of this article is a little tough to take, given it was written by a bunch of high school students.
He isn't the "big reason" President Bush won.
President Bush did that on his own. Blackwell just made sure that the rules in place were enforced.