American presidents have long been criticised for being too in thrall to the Jewish lobby. So what happens if American Jews fall out of love with Israel?

That's what the Jewish American academic Norman Finkelstein claims is happening. He says they are now so unhappy with what Israel is doing that they want to distance themselves from the country.

Could he be right and if he is, what does that mean for America's Middle East policy?

You can watch the full interview on BBC World News on Tuesday 8 May at 03:30, 08:30, 15:30 and 20:30 GMT and on the BBC News Channel on Tuesday 8 May at 04:30 BST and Wednesday 9 May at 00:30 BST.

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