Michelle Obama has campaigned aggressively for her husband and should not be exempt from criticism, as bloggers examine all sorts of public figures for objectionable public comments, writes Paul Mirengoff. John Hinderaker wonders why Barack Obama isn’t a “laughingstock,” as the Democrat said over the weekend that Iran doesn’t pose “a serious threat to us,” then said on Monday that he’s made it “clear for years that the threat from Iran is grave.”