AP photo
In this May 3 file photo, Democratic U.S. Senate candidate Heidi Heitkamp greets a supporter in Minot. Heitkamp's campaign says the North Dakota Democrat raised nearly $1 million in the second quarter of 2012. The former attorney general and one-time gubernatorial candidate, is running against Republican Congressman Rick Berg for the seat being vacated by retiring Democratic Sen. Kent Conrad.
Read the article: Heitkamp raises nearly $1 million in second quarter
