Legal system:
common law system based on English common law at the federal level; state legal systems based on common law except Louisiana, which is based on Napoleonic civil code; judicial review of legislative acts
International law organization participation:
withdrew acceptance of compulsory ICJ jurisdiction in 2005; withdrew acceptance of ICCt jurisdiction in 2002
Suffrage:
18 years of age; universal
Executive branch:
chief of state: President Barack H. OBAMA (since 20 January 2009); Vice President Joseph R. BIDEN (since 20 January 2009); note - the president is both the chief of state and head of government
head of government: President Barack H. OBAMA (since 20 January 2009); Vice President Joseph R. BIDEN (since 20 January 2009)
cabinet: Cabinet appointed by the president with Senate approval
(For more information visit the World Leaders website )
elections: president and vice president elected on the same ticket by a college of representatives who are elected directly from each state; president and vice president serve four-year terms (eligible for a second term); election last held 4 November 2008 (next to be held on 6 November 2012)
election results: Barack H. OBAMA elected president; percent of popular vote - Barack H. OBAMA 52.4%, John MCCAIN 46.3%, other 1.3%;
Legislative branch:
bicameral Congress consists of the Senate (100 seats, 2 members elected from each state by popular vote to serve six-year terms; one-third elected every two years) and the House of Representatives (435 seats; members directly elected by popular vote to serve two-year terms)
elections: Senate - last held on 2 November 2010 (next to be held in November 2012); House of Representatives - last held on 2 November 2010 (next to be held in November 2012)
election results: Senate - percent of vote by party - NA; seats by party - Democratic Party 51, Republican Party 47, independent 2; House of Representatives - percent of vote by party - NA; seats by party - Democratic Party 192, Republican Party 243
Judicial branch:
Supreme Court (nine justices; nominated by the president and confirmed with the advice and consent of the Senate; appointed to serve for life); United States Courts of Appeal; United States District Courts; State and County Courts
Political parties and leaders:
Democratic Party [Timothy KAINE]; Green Party; Libertarian Party [William (Bill) REDPATH]; Republican Party [Reince PRIEBUS]