(CNN) – Positioning herself as a conservative gate-crasher, O'Donnell won more than 53 percent of the vote against U.S. Rep. Mike Castle in Delaware's Republican U.S. Senate primary Tuesday, a contest that showcased the Republican warfare between conservative Tea Party supporters and the more moderate party structures. In the closing days of the primary campaign, … Continue reading O'Donnell, elated after GOP Senate primary, eyes victory in November