"We've just heard that we won tonight in Wisconsin," said Senator Barack Obama (D) Illinois.
Barack Obama shared tonight's results with about 18,000 people. The senator was at a rally in Houston, where he urged Texans to follow Wisconsin's lead when the Lone Star State votes on March 4th.
"The change we seek is still months and miles away. And we need the good people of Texas to help us get there," said Senator Obama.
Obama began his speech before Hillary Clinton was finished with hers -- going against election night etiquette.
But during her speech at an Ohio rally, Clinton made no mention of Obama's victory and didn't thank the Ohio voters who did support her.
Instead, she stayed on message.
"We got to get America back in the solutions business because while words matter, the best words in the world aren't enough unless you match them with action," said Senator Hillary Clinton (D) New York.
Now that Clinton has lost Wisconsin, her campaign says it plans to sharpen attacks against Obama.
But could it all come too late? Obama tonight gained ground among key groups, white women and working class voters.
James Taylor is a professor of politics at the University of San Francisco.
"We're seeing more and more of a Hillary Clinton losing support of the loyal constituents she's had and I don't know how she can reverse that at this point unless she can win Texas by some unprecedented way by 70 percent or Ohio by 70 percent," said Prof. James Taylor Ph.D., U.S.F. Department of Politics.
On the Republican side, Senator John McCain won Wisconsin with ease.
He thanked voters for putting him closer to clinching the GOP nomination, then, like Clinton, took direct aim at senator Obama.
"I will fight every moment of every day in this campaign to make sure Americans are not deceived by an eloquent and empty call for change," said Sen. John McCain (R) Arizona.
With tonight's win in Wisconsin, Senator Obama now leads Clinton by 74 delegates, about 700 delegates short of what's needed to clench the Democratic nomination.
