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Republican Rick Santorum has won two crucial Deep South primaries, taking control of the conservative wing and dealing a setback to Newt Gingrich.
Many US Republicans may have growing concerns about their presidential front-runner Mitt Romney but no one is pushing the panic button — yet.
US congressional negotiators are racing to agree on billions of dollars in spending cuts before the federal government is forced to shut down.
Sarah Palin said on Friday an explosion of government spending and debt under President Barack Obama had put the US on "the road to ruin".
Disenchanted US voters swept Democrats from power in the House of Representatives and strengthened the ranks of Senate Republicans on Tuesday.
After a long and bitter campaign, Americans cast their votes on Tuesday in elections that could sweep Democrats from power in Congress.
A conservative "Tea Party" favourite knocked off the establishment choice in Delaware’s Republican Senate primary election on Tuesday.
The US House of Representatives gave final approval to a healthcare overhaul on Sunday, expanding insurance coverage to nearly all Americans.
President Barack Obama launches a last-ditch bid to salvage his stalled healthcare overhaul on Thursday at a televised summit.
Senate Democrats moved closer on Monday to passing landmark healthcare legislation by Christmas after scoring a win in the first big test vote.
A sweeping healthcare overhaul cleared its first hurdle in the US Senate on Saturday, with Democrats casting 60 party-line votes.
The US House of Representatives approved a sweeping healthcare reform Bill on Saturday, backing the biggest health policy changes in four decades.
Barack Obama rode a wave of voter discontent to a historic White House victory on Tuesday, promising change as the first black US president.
Democrat Barack Obama captured the White House on Tuesday after an extraordinary two-year campaign, defeating Republican John McCain.
Barack Obama and John McCain faced the verdict of Americans voting on Tuesday after a long and bitter struggle for the White House.