North Dakota state Rep. Rick Berg (R) has widened his lead over Rep. Earl Pomeroy (D-N.D.) in a new poll.

Berg is up 53 percent to 44 for the incumbent in a new Rasmussen Reports survey of 500 likely voters that was conducted Aug. 10-11. Last month, Berg was ahead by three points. Pomeroy holds the state's only House seat.

Republicans in North Dakota are confident of picking him off, in part, because Gov. John Hoeven (R) will be at the top of the ticket as he's running for Senate. The popular governor has been polling 40 points ahead of his Democratic opponent.