Castle will not back O'Donnell  —  A Rep. Mike Castle (R-Del.) campaign source confirmed to The Hill late Tuesday that the longtime congressman will not be endorsing Christine O'Donnell.  —  The Tea Party-backed O'Donnell defeated Castle for Delaware's Republican Senate nomination.

GOP's Delaware Senate Nominee Christine O'Donnell Not a Big Fan of Evolution  —  Christine O'Donnell won't have to lie about this Senate race.  She won the Republican nomination for the Senate in Delaware fair and square, against a much more experienced, much more moderate, much more respected opponent …

Coons up big  —  Republicans more than likely cost themselves a Senate seat last night.  Chris Coons begins the general election in Delaware with a 50-34 lead over Christine O'Donnell.  Mike Castle would have led Coons by a 45-35 margin.  —  While O'Donnell may have ingratiated herself …

Cornyn embraces O'Donnell  —  In a clear sign of the grassroots pressure on Republican leaders, National Republican Senatorial Committee Chairman John Cornyn just put out a statement embracing Christine O'Donnell — a dramatic contrast with his group's curt response last night — and writing her a big check.

Rove bashes O'Donnell; O'Donnell supporter at victory party strikes back; NRSC cuts and runs; Soros Republican Castle won't back O'Donnell; Update:NRSC flip flops, Rush Limbaugh weighs in: “Balls to the wall”  —  Scroll for updates...  I just finished watching Karl Rove trashing GOP Senate primary winner Christine O'Donnell.

Christine O'Donnell on Rove's ‘Un-factual’ Remarks and ‘Republican Cannibalism’  —  The Republican nominee for the Delaware Senate seat fired back at Karl Rove today for what she called “un-factual” accusations about her record.  —  “Everything that he is saying is un-factual.

Soul-searching time: a GOP torn  —  Christine O'Donnell's surprise victory in the Delaware Senate GOP primary Tuesday left Republicans in conflict, senior party officials openly fretting that the Senate is now out of reach and Democrats overjoyed that the opposition has handed them a late …

NRSC backs O'Donnell, donates $42,000  —  The NRSC backed Rep. Mike Castle and opposed Christine O'Donnell in the lead-up to Delaware's GOP primary.  —  The Senate Republican campaign arm on Wednesday pledged to support Christine O'Donnell, the Tea Party favorite who shocked …

Romney backs O'Donnell  —  Support for Christine O'Donnell appears to have emerged this morning as a kind of grassroots litmus test, and the Establishment is scrambling to pass it.  —  Mitt Romney just endorsed her, saying, “Now is the time for Republicans to rally behind their nominee, Christine O'Donnell.

Republicans Reap The Whirlwind  —  The conservative movement has spent the last 20 months sowing hysteria about President Obama's agenda.  The most respectable Republicans call the president a socialist, a radical, a threat to freedom.  The less respectable Republicans, many of them highly influential …

Why Mike Castle Lost  —  Mike Castle might have been a wonderful general election candidate in the Delaware Senate race.  But he ran a terrible campaign in the Republican primary, which is why he lost to Christine O'Donnell, a Tea Party favorite.  —  Castle, Delaware's lone congressman, came up short in four separate ways.

The Limbaugh Rule: Vote for Most Conservative Candidate in Primary  —  BEGIN TRANSCRIPT  —  Well, the big election in Delaware today is bringing out people on both sides, on the Republican side, on both sides of this.  It is most unfortunate what is going on because in my mind, you know …