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The three latest Iowa polls indicate a horse race developing in both parties. Hillary Clinton, Barack Obama, and John Edwards are neck and neck and neck. The second tier candidates (Richardson, Biden, Dodd, Kucinich, and Gravel) manage to garner about 16% of the vote. It is highly unlikely any of them will hit the viability threshold of 15% on the first round of voting, so their supporters will have to make a second choice. Earlier polls showed that the second choice was Edwards by 2 to 1.