WASHINGTON (AP) — Rep. Michele Bachmann and her short-lived campaign last year for the GOP presidential nomination are being investigated by the Office of Congressional Ethics.

A lawyer for the Minnesota Republican said Monday that Bachmann is cooperating with the investigation. The Office of Congressional Ethics is an independent investigative body established by the House five years ago to conduct preliminary investigations into allegations of misconduct by House members or their aides. The panel can dismiss cases or refer them to the House Ethics Committee.