For Nancy Pelosi, 78, Steny Hoyer, 79, and Joe Biden, 75, the primary results from New York’s 14th congressional district are a fire bell in the night. All may be swept away in the coming revolution. That is the message of the crushing defeat of 10-term incumbent Joe Crowley, who had aspired to succeed Pelosi and become speaker of the House. The No. 4 House Democrat, Crowley, 56, had not faced primary opposition since 2004. He outspent his opponent, 28-year-old Alexandria Ocasio-Cortez, who was tending bar a year ago, by 10 to one.