It started with a campaign akin to novelist Charles Dickens’ “A Tale of Two Cities,” with New York City as the backdrop for Bill de Blasio’s political crusade. It was a modern take on the classic tale, casting rich and poor New Yorkers as the bourgeoisie and the proletariat, and he counted on support from the poor hoped to provide him with a wealthy victory. Four years ago, the middle-aged Brooklynite with a biracial family seemed to be the second coming of Christ the Democratic party had been waiting for. His policies were clear and straight-forward, eliminating the bureaucratic jargon past candidates were famous for. He had that je nei…