Twelve Democrats on the House Judiciary Committee have sent a letter to NFL Commissioner Roger Goodell questioning his handling of a domestic violence incident involving former Baltimore Ravens running back Ray Rice.

The letter says the NFL's high profile demands "the highest level of transparency" concerning how the league investigates allegations of misconduct

The letter notes Goodell's statements in media interviews that the league did not see until Monday a highly publicized video of Rice punching his then-fiancee in an Atlantic City casino. The letter says Goodell and the NFL have not stated how aggressively the league sought to obtain the video and how law enforcement agencies responded.

The letter is signed by the senior Democrat on the Judiciary panel, Michigan congressman John Conyers, and 11 other Democrats.