September 30, 2010 Rep. Mike Castle (R-DE) won't run as a write-in candidate in the race for a U.S. Senate seat. It remains a two-way contest between the woman who beat him in the Republican primary, Christine O'Donnell, and Democrat Chris Coons who holds a large lead.
September 27, 2010 Mike Castle, the Delaware Republican who lost his Senate primary to a Tea Party-backed challenger in an upset, is considering running as a write-in candidate.
September 15, 2010 A source or sources inside Rep. Mike Castle's campaign says he won't endorse winner Christine O'Donnell, the Tea Party favorite who won the GOP Senate nomination.
September 15, 2010 Christine O'Donnell got support from Sen. John Cornyn, head of the National Republican Senatorial Committee committee who gave her $42,000, a maximum contribution.
September 14, 2010 Christine O'Donnell led Mike Castle in Delaware with more than 41 percent of the vote counted.
September 14, 2010 Christine O'Donnell, pick of the Delaware Tea Party for the GOP Senate nomination, was hit by a highly negative robocall by an ex aide calling her a "complete fraud."
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