The state Republican party has endorsed Lee Byberg to challenge longtime Democratic Congressman Collin Peterson in the 7th District. The party on Saturday called Byberg a “principled conservative leader” who will work hard to rein in out-of-control government spending. Byberg received the endorsement over state Senator Gretchen Hoffman. The 7th District covers much of western Minnesota. Peterson was first elected in 1990. He has generally been re-elected by wide margins despite being a Democrat in a largely conservative district. Byberg ran and lost against Peterson in 2010.