Dana Milbank The gods were toying with Benjamin Netanyahu and the American Israel Public Affairs Committee. The Israeli prime minister canceled his Tuesday appearance at the pro-Israel lobbying group’s Washington conference because of violence in Israel, but he attempted a live video address. Netanyahu’s speech was another knife into the heart of the bipartisan U.S.-Israel alliance. He attacked Democrats, singling out one Muslim member of Congress for remarks that were seen as anti-Semitic, while ignoring the many anti-Semitic remarks by Republicans. And he leveled the scurrilous claim that anyone who…