SUBJECT
Political aspects
Politics and government
Elections
3
Economic aspects
2
Economic policy
2
2000
1
2001-
1
2004
1
2008
1
Apportionment (Election law)
1
Business cycles
1
Constitutional history
1
Demography
1
Election
1
Foreign relations
1
Governmental investigations
1
Iraq War, 2003-
1
Mass media
1
Mathematical models
1
Party affiliation
1
Petroleum industry and trade
1
Philosophy
1
Political corruption
1
Political participation
1
Political parties
1
Political science
1
Population geography
1
Presidents
1
Social choice
1
State governments
1
United States
1
War on Terrorism, 2001-
1