Politics and government 591 Legislators 389 History 380 Elections 201 Presidents 143 Congresses 115 Foreign relations 111 hơn ... Research 105 Government policy 103 Election 90 Law and legislation 83 Rules and practice 75 International relations 72 Economic aspects 71 Campaign funds 70 Powers and duties 70 Education 68 Legislation 68 Voting 67 Political campaigns 62 Economic conditions 59 Representative government and representation 59 African Americans 58 Committees 57 Finance 57 Social conditions 56 Political parties 55 Political aspects 54 Study and teaching 54 Medical care 53 ít hơn ...