Democratic and Republican U.S. presidential candidates are making a final push for support in the midwestern state of Iowa today, Wednesday, the last day before the state's party nominating caucuses.
Among the Democrats, polls indicate a close three-way race among Senators Hillary Rodham Clinton and Barack Obama, and former Senator John Edwards.
Clinton has led the Democratic field for most of the race, although a recent poll by the Des Moines Register newspaper shows Obama in the lead.
Meanwhile, former Arkansas Governor Mike Huckabee and former Massachusetts Governor Mitt Romney are vying for first place on the Republican side.
On the eve of Iowa Caucus, there is frigid temperatures across the state. Campaign workers are concerned about the weather and how it will affect the turn – out.
Asim Chakrabarti is in Des Moines and reports on the latest.