Political science is a social science concerned with the

theory and practice of politics and the description and

analysis of political systems and political behavior. It is

often described as the pragmatic application of the art and

science of politics defined as "who gets what, when and

how", leaving out of the picture most of the "why".[1]

Political science has several subfields, including:

political theory, public policy, national politics,

international relations, and comparative politics.