- Associated Press - Tuesday, September 14, 2010

WILMINGTON, Del. | Conservative activist and tea party favorite Christine O'Donnell upset veteran U.S. Rep. Michael Castle in the Delaware Republican Senate primary Tuesday, overcoming hostile opposition from her state party to earn the surprising victory.

In other unofficial results, Sussex County developer Glen Urquhart, who also courted the tea party vote, had a 552-vote lead over Greenville businesswoman Michele Rollins, who, like Castle, was the party’s endorsed candidate.

O'Donnell’s shocking victory gave new energy to the tea party movement, which targeted Castle after victories by Republican tea party candidates in the Alaska and Nevada Senate primaries.

With all precincts reporting, O'Donnell had 53 percent to 47 percent for Castle, a former two-term governor and the longest serving congressman in Delaware history.

O'Donnell supporters who gathered at an Elks Lodge in Dover erupted in cheers and dancing upon learning of her victory. O'Donnell took the lead early as voting results came in and never relinquished it, prompting some of her supporters to make floor-sweeping motions while cheering, “Sweep ‘em out!”

“We worked hard to be here,” O'Donnell said. “I cannot thank you enough for that. The people of Delaware have spoken: No more politics as usual! I can’t thank you enough, because you guys have partnered with me, believed in me from the beginning, stood with me in the face of adversity.”

O'Donnell thanked former vice presidential candidate Sarah Palin for her endorsement.

“She got behind us war-weary folks and gave us a boost of encouragement when we need it,” she said. “She was a vote against the politics of personal destruction.”

She thanked an army of volunteers who she said were committed to a cause greater than themselves.

Castle supporters at his election party in Wilmington stood in stunned silence as returns rolled in, but erupted into cheers when he took the stage for a brief speech.

“The voters in the Republican primary have spoken, and I respect that decision,” Castle said.

“I had a very nice speech prepared, hoping I would win this race,” Castle said jokingly, as tearful staffers and supporters looked on.

Castle did not mention O’Donnell in his speech, and he left the room without taking questions from reporters.

While attracting enough GOP conservatives to defeat Castle, a leader of Republican moderates in Congress, O'Donnell will have a hard time defeating Democrat Chris Coons in November for the Senate seat vacated by Joe Biden after he was elected vice president.

But voters nevertheless took their chances on O'Donnell, who characterized Castle as a liberal who sides with big-spending Democrats more than he does with fellow Republicans.

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