Supporters of Republican Congressman Mike Castle have been churning out opposition research on his Senate primary opponent, Christine O'Donnell, and now some of that material is making it onto the airwaves in Delaware.
Hotline OnCall's Jeremy Jacobs reports that Castle is up on the air with this negative TV ad. It focuses on O'Donnell's financial problems outlined in this News Journal story, which has supplied O'Donnell's opponents with nearly all of their major lines of attack.
Chris Good is a political reporter for ABC News. He was previously an associate editor at The Atlantic and a reporter for The Hill.