The latest independent poll says former Ohio governor Ted Strickland still leads U.S. Senator Rob Portman in the race for Portman's seat, but that lead is shrinking.
The survey of Ohio voters by Quinnipiac University says Strickland holds a 46-to-40 percent lead over Portman. That's down from the nine point lead Strickland had in the last Quinnipiac poll in April.
The poll says Portman holds a 49-to-24 percent lead over Democratic Cincinnati City Councilman P.G. Sittenfeld, who's also running for the seat.