The legislative attack on public sector unionism that gave rise to the uproar in Wisconsin and other union strongholds in 2011 was not just a reaction to the contemporary economic difficulties faced by the government. Rather, it was the result of a longstanding political and ideological hostility to the very idea of trade unionism put forward by a conservative movement whose roots go as far back as the Haymarket Riot of 1886. The controversy in Madison and other state capitals reveals that labor's status and power has always been at the core of American conservatism, today as well as a...