Six weeks before South Carolina Republicans and Democrats cast their primary votes for president, the races remain very much up in the air.
On the Democratic side, most polls show Sen. Hillary Clinton with a comfortable lead in South Carolina, but some also show her support slipping in Iowa, giving fresh hope to Sen. Barack Obama and former Sen. John Edwards, her main rivals.
On the Republican side, what many considered a four-way race between former New York Mayor Rudy Giuliani, Sen. John McCain, former Massachusetts Gov. Mitt Romney and former Tennessee Sen. Fred Thompson now shapes up as a five-way contest, with former Arkansas Gov. Mike Huckabee joining the party.