American Jewry underwent a profound ideological transformation in the latter half of the twentieth century, shifting from traditionally liberal positions to increasingly conservative stances as economic prosperity reshaped Jewish political orientation and religious consciousness. Through qualitative analysis of political behavior, institutional responses, and community dynamics, Margolies traces this evolution across key historical moments - from Jewish support for Nixon over McGovern to community responses during Vietnam and Watergate, positions on affirmative action in the Bakke case, and institutional censorship regarding Middle East policy. Five critical implications emerge from this conservative shift: accelerated assimilation evidenced by the declining "Jewish vote," diminished commitment to biblical justice imperatives, increased alienation of young Jews from synagogue life, deterioration of rabbinical leadership and moral authority, and concentration of communal power among wealthy philanthropists supporting establishment agencies. This ideological transformation represents a fundamental departure from prophetic traditions of social justice, creating an unprecedented alliance between religious and plutocratic elements that threatens Jewish distinctiveness and moral leadership in American society.