“Because the Israel lobby has gradually become one of the most powerful interest groups in the United States, candidates for high office pay close attention to its wishes. The individuals and groups in the United States that make up the lobby care deeply about Israel, and they do not want American politicians to criticize it, even when criticism might be warranted and might even be in Israel’s own interest. Instead, these groups want U.S. leaders to treat Israel as if it were the fifty-first state. Democrats and Republicans alike fear the lobby’s clout. They all know that any politician who challenges its policies stands little chance of becoming president.“