what kind of government does the united states have today?
Presidential system Federal republic Representative democracy Two-party system Constitutional republic Republic
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 The United States is the world 's oldest surviving federation . It is a constitutional republic and representative democracy , " in which majority rule is tempered by minority rights protected by law " . The government is regulated by a system of checks and balances defined by the U.S. Constitution , which serves as the country 's supreme legal document . For 2014 , the U.S. ranked 19th on the Democracy Index and 17th on the Corruption Perceptions Index . 

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 The United States government should be independent of any international organization of governments and American law should not be imposed by organizations such as the United Nations . 

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 In the American federalist system , citizens are usually subject to three levels of government : federal , state , and local . The local government 's duties are commonly split between county and municipal governments . In almost all cases , executive and legislative officials are elected by a plurality vote of citizens by district . There is no proportional representation at the federal level , and it is rare at lower levels . 

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 U.S. organizations 

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 U.S. organizations 
