Mollohan in trouble?

Alan Mollohan's conservative Democratic challenger Mike Oliverio is ahead of the incumbent by 8 points, Oliverio's camp tells CQ:

A poll conducted for state Sen. Mike Oliverio (D) has him leading Rep. Alan B. Mollohan (D) ahead of the May 11 primary election.

The survey, conducted of 400 likely primary voters by Orion Strategies on April 21, had Oliverio leading Mollohan by 41 percent to 33 percent, with 26 percent undecided on an unaided ballot. Curtis Wilkerson, the owner of Orion Strategies and Oliverio's campaign manager, told CQ Politics that the poll was conducted by live interviewers and had a margin of error of plus or minus 4.89 percentage points.

UPDATE: Mollohan has a separate poll showing him with a 9-point lead.

The state's primary is May 11, a week before Pennsylvania's.