road. if you have any sign of impropriety in the voting process, i think that just makes the whole thing stink. >> reporter: 7 opponents signed a letter demanding a federal investigation, and they want federal and state observers to monitor the city's election. the mayor insists the group is not connected to his campaign and he called what has happened moronic. >> it should be the individual who is voting has that chance to vote for him or her as to who their choice. that is a sacred right to do. they should never be intimidated to vote for anybody. >> reporter: the head of the department of elections says there doesn't seem to be a clear election violation. but the u.s. attorney is also reviewing the case. a spokesman for that case, the alliance, they have not returned our calls. if you suspect voter problems