(CNN) - The campaign of former Delaware Republican Senate candidate Mike Castle says there is "zero" chance he endorses his formal rival Christine O'Donnell.
According to Kate Dickens, spokeswoman for the Castle for Senate Campaign there is also, "zero chance that he endorses Coons."
After winning the GOP primary Tuesday night, Christine O'Donnell will face Democrat Chris Coons in the November general election.
Dickens told CNN that O'Donnell will not receive Castle's endorsement because of "the personal attacks on him and his family."
She said her campaign mislead voters about Castle's record for the last year.
"We know what the said about the Congressman and his family and his record and his marriage," Dickens said. "This was the basis of her campaign, lying and scaring people."
"That's a shame," O'Donnell told CNN in response to the news that she won't receive Rep. Castle's endorsement. She said she's "sorry to hear that," but that she remains optimistic.
"If they worked as hard for me as they did against me we could definitely win," O'Donnell said. "I know we can win this even if the establishment doesn't get behind me."
The end of the primary clearly has not brought an end to the bitterness and acrimony of the campaign. When asked whether, given his opinion of O'Donnell, Castle is concerned she'll become a U.S. Senator Dickens said simply, "she won't."