The 1988 North Dakota gubernatorial election took place on November 8, 1988 to elect the Governor of North Dakota. Incumbent Democratic Governor George A. Sinner was reelected to a second term with 58% of the vote, defeating Republican nominee Leon Mallberg, a businessman and "anti-tax crusader" and his running mate Donna Nalewaja.[1][2]Lloyd Omdahl, who had been appointed Lieutenant Governor of North Dakota in 1987 after the death of Ruth Meiers, was elected on the ticket.[3] As of 2024[update], this was the last time a Democrat was elected Governor of North Dakota.