Sources: Mitt Romney to launch Senate campaign Thursday

SALT LAKE CITY (AP) - Former GOP presidential nominee Mitt Romney is running for the Senate in Utah.Three people with direct knowledge of the plan say Romney will formally launch his campaign in a video on Thursday. His first public appearance as a Senate candidate is scheduled for Friday in Utah. The people who provided the information asked for anonymity because they were not authorized to talk about Romney's plans in advance.Romney, who is 70, is seeking to replace Republican Sen. Orrin Hatch