Preview: In New York’s 14th Congressional District, which includes the eastern Bronx and northern Queens, Joseph Crowley, 56, is being challenged by Alexandria Ocasio-Cortez, 28, a former campaign organizer for Bernie Sanders. Mr. Crowley, who is seen as a possible replacement for Nancy Pelosi as the leader of the House Democrats, has faced an unexpectedly strong challenge from Ms. Ocasio-Cortez, who is running as a progressive. Read more »