A mostly obscure and widely derided sector of the financial industry—bond rating agencies—may be one of the few remaining things with the power to save some of America’s largest cities from destruction by the policies of the far-left mayors who run them. Moody’s Ratings this week revised its outlook on New York City to "negative" from "stable." "The negative outlook reflects the emergence of sizable and persistent projected budget gaps that signal underlying structural imbalance and reduced