NPR host Diane Rehm declared during an interview with Sen. Bernie Sanders (I., Vt.) that he had dual Israeli-American citizenship Wednesday before Sanders set her straight, adding he was “offended” by the comment. Sanders, who is Jewish, is pursuing the Democratic presidential nomination. “Senator, you have dual citizenship with Israel,” she said. “Well, no, I do not have dual citizenship with Israel,” Sanders replied. “I’m an American. I don’t know where that question came from. I am an American citizen, and I have visited Israel on a couple of occasions. No, I’m an American citizen, period.” Rehm apologized, but said...