“I’ve had enough conversations with him and see him often enough to know the severity suddenly hit him like a ton of bricks,” Ambassador Deborah Lipstadt, the U.S. special envoy to monitor and combat antisemitism, told POLITICO. “And he said, ‘You know, I’m in this position. I’ve got to do something.’ He really in his gut felt that it would be derelict on his part not to somehow try to move the needle or to move things forward.” Emhoff is not terribly religious — and admits as much. He grew up in Old Bridge, N.J., a community with a fair...