I think that's Nick Popaditch. He was in a tank in Iraq and lost his eye to an RPG. His other eye was pushed over behind his nose. He was in pretty bad shape, but is currently running for Congress.
I was in a band that played at one of his rallies in 2008, and had a nice chat with him. He usually wears an eye patch over the glass eye, but he'll show it to you if you want!