The problem is that Romney changes states about as frequently as you or I change socks. I would think that any corruption he may have engaged in when governor of the Bay State has already passed the statute of limitations. If something did stick, he may be able to claim Mexican citizenship due to his father being born in that country, of course, after the Mexican authorities are duly compensated.
No, it wasn’t MA corruption. It was Bain and Bain Capital stuff, including with some corrupt banks in the DC area. His money is dirty and it involved international players.