I missed this yesterday. I think this makes him the first official GOP candidate for president. I don't think any of the others have officially declared like this yet (I could be wrong), they're just claiming they're considering running........like Pat Paulsen......
Oops, he’s recanted, he’s still “exploring”. At least according to this Polutico article: http://www.freerepublic.com/focus/f-news/2704003/posts