Presidents 377
Economic conditions 61
Law and legislation 44
Middle class 12
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Politics and government 10
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BP Deepwater Horizon Explosion and Oil Spill, 2010 3
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Government policy 3
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International cooperation 3
Labor laws and legislation 3
Legal status, laws, etc 3
Military assistance, American 3
Nuclear disarmament 3
Prevention 3
Selection and appointment 3
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Terrorism 3
Veterans 3
Vice-presidents 3
Anniversaries, etc 2
Civil rights 2
Ebola virus disease 2
Education 2
Energy security 2
Finance 2
Firearms 2
Hemorrhagic Fever, Ebola 2
Political aspects 2
Public opinion 2
Retirement 2
Sandy Hook Elementary School Massacre, Newtown, Conn., 2012 2
Soldiers 2
Speeches, addresses, etc., American 2
Suffrage 2
Unemployment insurance 2
African Americans 1
Armed Forces 1
Attorneys general 1
Boston Marathon Bombing, Boston, Mass., 2013 1
Cabinet officers 1
Chemical arms control 1
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Clean energy 1
Climate change mitigation 1
Commercial policy 1
Communication in politics 1
Community policing 1
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Computer network resources 1
Corporations 1
Discrimination in housing 1
Educational change 1
Emigration and immigration law 1
Employment 1
Fourth of July 1
Gay people 1
Girls 1
Global Warming 1
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Higher education and state 1
Homeowners 1
Homosexuality 1
Housing 1
Immigrants 1
Inauguration 1
Information technology 1
Iraq War, 2003-2011 1
Judgments 1
Kosovo War, 1998-1999 1
Law enforcement 1
Manufacturing industries 1
Marriage law 1
Mass media 1
Mass murder 1
Medicaid 1
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Memorial Day 1
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National monuments 1
National security 1
Nuclear energy 1
Older people 1