In response to people getting weirdly defensive of AIPAC, I've been pointing to the NRA for a while as a good example of an unwelcome lobbying group that Dems rightly don't hesitate to criticize. It's a group that lobbies for a specific policy position that most Dem voters strongly disagree with.
Nathan GoldwagI agree that the role of AIPAC in US politics is often overstated, in the same way that the NRA serves as a synecdoche for a broad-based collection of interests, but the thing about spending $30 million on an election is that people are going to assume you have some kind of stake in winning it.