Here's the Andrew Sulllivan post about Mearsheimer supporting an obviously anti-semitic book:
Longer posts from Volokh Conspiracy and Jeff Goldberg:
This is not a question of vague quotes, unclear motives, or things being pulled out of context. Atzmon (the guy Mearsheimer supported) has ridiculously vile quotes about Jewish people, and there's no way to interpret otherwise. Not to mention, this is not a case of Mearsheimer just endorsing a book based on a blurb, because in a post at Steve Walt's blog (you can find the link via the Volokh post) he goes into detail defending Atzmon from the people criticizing him. I think this whole thing should at least make people reflect on how they view the Israel Lobby.