Updated 2/20/08, 9:05am: Barack Obama delivered impressive wins in both Wisconsin and Hawaii on Tuesday night, winning the Democratic primary and caucus contests held respectively in those states. In early voting tallies of the Wisconsin Democratic primary Tuesday night, Barack Obama led his opponent, Hillary Clinton, by a significant margin. Exit polling of voters showed that he won the majority vote from nearly every demographic. He also received support from registered Independents, and even some moderate Republicans - perhaps foreshadowing the broad coalition of support he has a chance of garnering during the general election.

In a victory speech delivered from Houston, Texas, Obama told his supporters: "I'm running because of a 'fierce urgency of now'. During his speech tonight, Obama sounded relaxed, confident, and ever-more convincing in his call for change.

"The American people have spoken out and they are saying, we need to move in a new direction."

With 99% of the vote counted in Wisconsin, Obama led 58 percent of the vote to 41 percent for Clinton. With 70% of the vote counted in Hawaii, Obama led 75% to 24% for Clinton.

It appears increasingly probable that the general election will feature a contest between the two senators, John McCain (R) and Barack Obama (D).

But don't count Hillary out just yet.

Obama hopes to continue his momentum into the next Democratic primary states of Texas, Ohio and Pennsylvania. It's estimated that Hillary Clinton needs to win approximately 65% of all delegates in the remaining primary contests in order to regain her lead over Obama.

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