A bizarre report about Republican congressmen on a late-night swim last year in the Sea of Galilee -- including one who went skinny-dipping -- triggered a flurry of clarifications from Capitol Hill overnight and a round of accusations between two primary opponents.

The report in Politico said the FBI had looked into the incident in Israel last year, when a mix of GOP congressional freshmen and leaders were visiting as guests of The American Israel Educational Foundation.

According to the report, Kansas Rep. Kevin Yoder stripped naked and jumped into the water that night, as several other clothed or partially clothed lawmakers and staff members also went for a dip. For some, Politico reported, alcohol may have been a factor.