It might seem odd that a foreign leader charged with conducting complicated statecraft in his own country should involve himself in state-level politics in America. Or that anyone should take notice when the mayor of a foreign town of 700,000 lavishes political favors on the mayor of a U.S. city of almost seven million people. But when the state in question is New York and the foreign country is Israel, the usual laws of political gravity no longer apply. Ehud Barak is the left-leaning prime minister of Israel. Ehud Olmert is the Likudnik mayor of the Jerusalem municipality. And the two Ehuds--never the best of friends--have clashed over a Senate race taking place half a world away.