“Jack Schlossberg, the grandson of John F. Kennedy, said he would run for the congressional seat being vacated by Representative Jerrold Nadler, joining the crowded Democratic primary in an influential New York City district and continuing his family’s legacy in electoral politics,” the New York Times reports.“Mr. Schlossberg, 32, is perhaps best known as a social-media political commentator and provocateur who has frequently weighed in on national issues. He shared the news of his campaign in an email to supporters on Tuesday night.”