A part of what Jewish philosopher Emil Fackenheim called the 614th commandment was the duty to remember, to never forget. As a a moral duty, it transcends the give-and-take of bare-knuckle partisan politics. From here on in, every swastika gets chained around Donald Trump like a heavy necklace. That goes double for American Jews who voted for the candidate who whipped up the neo-Nazi alt-right with calculated deliberation.