Rich Chrismer, the St. Charles County elections director, says his office last week turned over to the FBI 15 voter registration cards with nonexistent addresses that had been submitted by the Barack Obama presidential campaign in Missouri.

Chrismer said the bad addresses were noted by one of his employees who was checking on voter registrations.

He said the FBI had asked him to contact the bureau if anyone tried to vote using the suspicious registration. He said the cards were turned in, mostly on Oct. 8 and Oct. 9, by Obama for America. That’s one of the Obama campaign organizations operating in Missouri.

Obama spokesman Justin Hamilton said the campaign has gone through “painstaking measures to ensure that we dotted every I and crossed every T” on the tens of thousands of registration cards submitted by the campaign across Missouri.

He added, though, that ”we don’t think any number of problems is acceptable… We’re certainly concerned that they are raising the idea that there could be a problem two weeks before the election.”

Hamilton said the FBI had not contacted the Missouri campaign about the 15 cards. He also said it was “disturbing” that Chrismer’s office hadn’t raised the issue with the campaign “but chose to do so with the media.”

FBI officials could not be reached for comment tonight.