Burnham's 1970 book ''Critical Elections and the Mainsprings of American Politics'' presented a theory of American political development focused on the role of party systems that last several decades and are then disrupted by a [[critical election]]. Such elections not only hand presidential and congressional power to the non-incumbent political party, but they do so in a dramatic way that repudiates the worn-out ideas of the old party and initiates a new era whose leaders govern on a new set of assumptions, ideologies, and public policies. The elections of 1860 and 1932 are perhaps the clearest examples of critical elections, and scholars have disagreed about how well Burnham's theories still explain American electoral politics. | Burnham's 1970 book ''Critical Elections and the Mainsprings of American Politics'' presented a theory of American political development focused on the role of party systems that last several decades and are then disrupted by a [[critical election]]. Such elections not only hand presidential and congressional power to the non-incumbent political party, but they do so in a dramatic way that repudiates the worn-out ideas of the old party and initiates a new era whose leaders govern on a new set of assumptions, ideologies, and public policies. The elections of 1860 and 1932 are perhaps the clearest examples of critical elections, and scholars have disagreed about how well Burnham's theories still explain American electoral politics. |