Unlawful possession of weapons in restricted areas and a possible financial relationship with a staffer are among the reasons given for an ethics investigation of North Carolina Republican Rep. Madison Cawthorn.
It's the latest spat between the freshman lawmaker and his colleagues, including House Minority Leader Kevin McCarthy.
An investigation was requested by American Muckrakers PAC on Wednesday after Cawthorn was cited but not charged for trying to bring a loaded gun through security at Charlotte Douglas International Airport in North Carolina.
The PAC also claimed Cawthorn gave his aide Stephen Smith over $250 in free housing and travel, in violation of House rules.
The House established the Office of Congressional Ethics to investigate any allegations of wrongdoing by members of Congress and their staff.
It can conduct its own investigations, refer cases to the bipartisan House Ethics Committee, and fine violators.
OCE declined to comment, but Muckrakers PAC published a screenshot of an email from the office confirming receipt of the investigation request.