Many of 20th-century conservatism’s tricks were honed in 1930s agribusiness’s fight against farmworkers. ….. Conservative rule in America is by now so deep-seated that a veritable cottage industry has sprung up to explain its origins. By varying accounts, the modern Right’s resurgence has its roots in populist religious revivals, Cold War paranoia, racial scapegoating and the ongoing cultural backlash against the New Left. Taken together, they raise the question: What served as the mainspring force? …..