A new poll shows Republican Pat Toomey ahead of Democrat Joe Sestak in their U.S. Senate race.

The Franklin & Marshall College poll shows Mr. Toomey with the support of 40 percent of likely voters to Mr. Sestak's 31 percent. About a quarter remain undecided with about 9 weeks left until the Nov. 2 general election.

Mr. Toomey and Mr. Sestak are vying for the seat currently held by Arlen Specter, who was knocked off by Mr. Sestak in the primary.

Thursday's poll also shows Republican gubernatorial candidate Tom Corbett leading his Democratic counterpart. The state attorney general has an 11-point lead over Allegheny County Executive Dan Onorato with 31 percent of likely voters undecided.

The poll of 577 Pennsylvanians was conducted the week ending Monday. The sampling error margin is plus or minus 5.4 percentage points.

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