The dissertation focuses on Irish and Italian Catholics and Jews in New York City and examines the interplay between religious values, ethnic sensibilities and Cold War-era politics. It modifies wisdom regarding the decline of American liberalism in the post-war period. Most writers agree that race played a central role in this story. The example of New York City suggests otherwise. In Gotham, the Roosevelt coalition began to experience serious ruptures long before terms like "Black Power" entered the American political lexicon. This political break had little to do with race. As early as the 1940s, highly salient cultural differences between Catholics and Jews drove a wedge between the Roosevelt coalition's two principal white ethnic const...