The most momentous fact about the pattern of American politics is that we live under a persistent, obdurate, one might almost say tyrannical, two-party system. We have the Republicans and we have the Democrats, and we have almost no one else, no other strictly political aggregate that amounts to a corporal's guard in the struggle for power.
Parties and Politics in America (ed. Cornell University Press, 1964) - ISBN: 9780801490217