Presidents 253 Election 103 Politics and government 75 Biography 50 History 25 Executive power 14 Foreign relations 12 Elections 11 Political parties 10 Nomination 9 Voting 9 Vice-Presidents 8 Fiction 7 Staff 7 College presidents 5 Congresses 5 Political conventions 5 Television in politics 5 Correspondence 4 Powers and duties 4 Sources 4 Administration 3 Cabinet officers 3 Economic policy 3 Executive departments 3 Messages 3 Officials and employees 3 Press conferences 3 Primaries 3 Selection and appointment 3