Incumbent Gov. Butch Otter holds a 14-point lead in a poll conducted last week by Rasmussen Reports, a conservative-leaning polling company.

The Republican Otter had 50 percent backing in the poll of 750 likely Idaho voters, according to survey results released Wednesday. Democrat A.J. Balukoff, a Boise School Board trustee, had 36 percent support. Eight percent of voters supported another candidate, and 7 percent were undecided.

The margin for error in the telephone survey was 4 percent.

The poll was conducted May 28 and 29, barely a week after Otter and Balukoff secured their respective parties’ nominations in primary elections. Otter received 51 percent in a four-way race, with his main competition coming from conservative state Sen. Russ Fulcher of Meridian. Running against a virtual unknown, Terry Kerr of Idaho Falls, Balukoff secured a 65 percent majority.

Otter is seeking his third term as governor.

On Tuesday, Rasmussen released polling that showed incumbent U.S. Sen. Jim Risch holding a 25-point lead over Democratic challenger Nels Mitchell. Risch had 54 percent support to Mitchell’s 29 percent.