Colleen Hanabusa (Marco Garcia/AP)

A top aide in Rep. Colleen Hanabusa's (D-Hawaii) office has resigned after a Washington Post report said that he attempted to coordinate campaign spending by the Pharmaceutical Research and Manufacturers of America (PhRMA) with Hanabusa's Senate campaign.

Christopher Raymond, Hanabusa's deputy chief of staff, resigned Wednesday, a day after a Federal Election Commission complaint was filed against him.