11/01/2010 02:00 pm ET | Updated May 25, 2011

Game Day: Why Loyal Buckeyes May Hate Rob Portman

It's a rivalry that dates back to 1897, and Lee Fisher is capitalizing on it in his latest ad.

Fisher, wearing an Ohio State sweatshirt and sitting in a stadium, holds a football as he talks about Rob Portman's inflated budgets and practices of shipping jobs to China.

And one more thing...that Portman went to the University of Michigan.

"Buckeyes deserve better than someone from that school up north," Fisher says, pointing with his football. The OSU-Michigan rivalry is one of the most heated in the country, and Fisher hopes that his identity as a "proud Ohioan" will earn him some of the votes he needs to erase his deficit in the polls.

Ironically, Fisher was born in Ann Arbor, where the University of Michigan is located. He grew up in Cleveland, however, and attended both Oberlin College and Case Western Reserve University.

Portman was born in Cincinnati but earned his undergraduate degree at Dartmouth and his law degree in Michigan.