Okay, made a quick call to the Voting Section of DOJ and the Staff Attorney advised that the intimidation statute is 42 USC 1973, but that there is nothing but the broad language of "shall not intimidate". He said there were no regulations which were specific to a firearm in a polling place either. I looked through the case notes following the statute and there's surprisingly few decisions dealing with the intimidation subsection, and absolutely none which deal with a firearm in a polling place.
So absent there being some specific regulation which the DOJ attorney was unaware of, your Circuit Clerk is wrong. Hell, she may have been unlawfully trying to deny you your right to vote.
