To the Tea Party, a vote for Delaware Senate hopeful Mike Castle (R) is a vote for a Democrat. Literally. Conservatives there are warning fellow tea partiers that if Castle gets elected, he’ll pull an Arlen Specter and switch parties when the going gets tough. So they’re endorsing his primary rival, Christine O’Donnell, instead.
This is a companion discussion topic for the original entry at https://talkingpointsmemo.com/?p=122384