How unsurprising is it that former President Donald Trump appeared recently at an event supposedly devoted to opposing antisemitism — and proceeded to deliver a speech dripping with antisemitic innuendo and contempt for American Jews? Like so much of what Trump says and does, his remarks at the “Combating Antisemitism” affair in Washington, D.C., expressed a bitter grievance. He resents the fact that Jewish voters in the United States remain overwhelmingly liberal and Democratic, which means only a minority of them vote for him. He bluntly argued that his support for Israel’s right-wing and b…