who's made it his messaission, says, to clean up voter registration rolls in ohio. >> reporter: mike doesn't shy away from the charge that he's trying to purge voter rolls, basically eliminate registered voters in cumberland county, north carolina. the reason is simple. he believes it's his duty. >> people ask me why i still do this? august 26th, 1994, i is raised my right hand and swore an oath -- >> the air force retiree says he still lives by the oath he took when he enlisted and he believes the constitution, the nation, is under attack from voter fraud. >> the system is rigged. the system is broken? >> the system is broken. motor voter law, the way the motor voter law was written, it was written by the democrats in such a way to keep the rolls bloated so that voter fraud could be done. >> reporter: motor voter is the law that allows voters to register to vote when they register their cars or driver's