The "affordability" agenda of New York City's new mayor apparently includes nurses getting paid more than $200,000 a year. Mamdani showed up this week at an event to support striking members of the New York State Nurses Association, who are participating in what the union characterizes as "the largest nurse strike" in the history of New York City. The union says nearly 15,000 nurses have gone out at Mount Sinai, NewYork-Presbyterian, and Montefiore hospitals. Socialist Sen. Bernie Sanders (I.,