I've only recently become aware of Hillary Mann Leverett. She was once an employee of AIPAC who, she says, came to her senses. I've found her to be one of the most incisive and trenchant observers of the situation of Israel in relationship to the United States.
In the following video, as usual not from one of the mainstream U.S. media outlets but from Al Jazeera, Leverett looks at the influence of AIPAC along with John Mearsheimer of the University of Chicago and Larry Greenfield of Jewish Institute for National Security Affairs.
Leverett has some comments on this program at her own website The Race for Iran, a blog always worth reading.