It would not surprise me if, at the next Republican National Convention, Benjamin Netanyahu took a seat in the delegates-from-abroad section. The Israeli leader has both allied and associated himself with congressional Republicans who differ with President Obama over whether to impose additional sanctions on Iran and who also — let’s not beat around the bush — hate his guts. Their foreign policy is actually a domestic one: to destroy the president. Whether this is political or personal — or a combination of the two — is beside the point. Whatever the case, when Netanyahu accepted John Boehner’s invitation to...