When you shake his hand, do you already know? Before you ask whether she has done anything political, can you guess in which party she would have done it? The political parties, even American political parties, are different. They offer different issue positions, on economic policy, on foreign policy, on social policy. They represent different interests as well, different classes, different regions, different ethnic and racial groups. Yet there is something else about these parties, something quite apart from issues and interests, which makes the direct observer believe that he can tell the Republicans from the Democrats, even when he is at the country club, or at the corner bar.