Voters in Washington, Wisconsin and Hawaii are contributing their two cents Tuesday in one of the hottest presidential races in history.
Washington and Wisconsin are holding their primaries Tuesday and Hawaii, its caucuses.
Democratic Sens. Hillary Clinton and Barack Obama are expected to continue their neck-and-neck fight for the party's nomination in all three states, while primary voters could help Sen. John McCain finally knock Mike Huckabee out of the Republican race for good.
Obama hopes his history will help secure a win in the Hawaii Democratic caucuses, where he was born and still has family. However, polls show Clinton may end Obama's winning streak in Wisconsin. The American Research Group poll conducted February 15 and 16, has Clinton finishing at 49 percent and Obama at 43 percent. The poll's margin of error is plus or minus 4 percentage points.
Ninety-four Democratic delegates are at stake Tuesday, 74 in Wisconsin and 20 in Hawaii. According to CBS News' estimate, Obama began the night with 1,289 delegates and Clinton with 1,213. It takes 2,025 to win the nomination at the party's national convention in Denver, CO.
The American Research Group poll predicts the GOP primaries will finish with McCain at 46 percent and Huckabee at 42 percent, with the poll's margin of error plus or minus 4 percentage points.
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