If you ever wanted to know that the Democratic Party has become a gerontocracy, you need look no further than the case of New York Rep. Jerrold Nadler and Jack Schlossberg. Nadler, 78, is retiring from Congress at the end of this term. Say what you will about the man — I certainly do — but at least his craziness is within the normal range of crazy Democrat behavior. Schlossberg, 32, became the instant favorite to take Nadler’s seat when he announced on Tuesday that he was running for the seat in the New York City district Nadler currently occupies....