New York City Mayor Zohran Mamdani unveiled a new budget that taxes the rich, forgoes a property tax hike, and depends on the generosity of Gov. Kathy Hochul to fill a budget gap Mamdani called historic. Mamdani's gap reprieve came in the 11th hour. The mayor was unrepentant in his determination to tax the rich and create a city that is more hospitable to working New Yorkers. The lingering question is whether it will drive businesses out and hurt the tax base. Mamdani said his preliminary budget proposal released 12 weeks ago, "reflected a straightforward reality. New York City was...