Ohio Sen. Rob Portman is in a dead heat with former governor Ted Strickland in a race that has been too close to call for months, according to a Quinnipiac University Swing State Poll released Wednesday.
Both men are tied at 42 percent each. Gender, age and racial gaps mark the race.
Portman leads 46 - 37 percent among men, 48 - 36 percent among white voters and 51 - 34 percent among voters over 65 years old, the poll found.
Strickland leads 46 - 39 percent among women, 69 - 15 percent among non-white voters and 46 - 27 percent among voters 18 to 34 years old.
Ohio voters give Portman a 44 - 32 percent job approval rating and 39 - 25 percent favorability rating.
Strickland gets a negative 38 - 42 percent favorability rating.
The poll also concluded voters approve the job Gov. John Kasich is doing 58-32 percent while Republican Gov. Rick Scott in Florida and Democratic Gov. Tom Wolf in Pennsylvania both are under water.
The Swing State Poll focuses on Florida, Ohio and Pennsylvania because since 1960 no candidate has won the presidential race without taking at least two of these three states.
In Florida, Sen. Marco Rubio leads U.S. Rep. Patrick Murphy 47 - 40 percent and tops U.S. Rep. Alan Grayson 48 - 40 percent. Murphy and Grayson are ahead of several largely unknown Republican contenders.
In Pennsylvania, Sen. Toomey leads Democratic challenger Katie McGinty 49 - 40 percent.
Voters in all three states give President Barack Obama his best job approval ratings in years.
Voters approve 44 - 30 percent of the job Democratic U.S. Sen. Sherrod Brown is doing and approve 58 - 32 percent of the job Gov. John Kasich is doing.
Ohio voters are divided on President Obama as 48 percent approve of the job he is doing and 50 percent disapprove, his best score in three years.
"In general, this poll of the three major swing states, Florida, Ohio and Pennsylvania, is good news for the GOP," said Peter Brown, assistant director of the Quinnipiac University Poll, in a prepared statement.
"Sen. Rob Portman is in a dead heat with former Gov. Ted Strickland in Ohio. But that is an improvement for Portman, who earlier in the campaign was down as much as 9 points. And in Pennsylvania, GOP Sen. Pat Toomey has a 9-point lead. It is far too early to say he's a sure thing, but he is in good shape."