WASHINGTON – A conservative leaning watchdog group today filed an ethics complaint against Sen. Bill Nelson, contending he discussed classified information or made it up.

FACT, the Foundation for Accountability and Civic Trust, is seeking an ethics investigation into Nelson's comments two weeks ago that Russians have "penetrated" some county election systems in Florida.

Read the complaint here.

"This is nothing more than a politically motivated attack by a politically motivated group trying to create a political sideshow," said Nelson spokesman Ryan Brown.

The complaint states that "Senate rules and Federal law prohibits Members from publicly disclosing classified information."

"If Nelson's statements are false, he disseminated false information on an issue of serious public concern with the authority of the Senate simply for political purposes," the complaint reads.

Nelson has tied his comments to the heads of the Senate Intelligence Committee, but has declined to elaborate on what else he may know, citing "classified" information.