(CNN) - Democratic Ohio Gov. Ted Strickland has moved to within one point of his Republican challenger, John Kasich, according to a new poll released the day before polling stations open in the critical battleground state.
Kasich leads Strickland 47 to 46 percent, with six percent of likely voters still undecided, according to the Quinnipiac University survey [pdf]. Five percent of voters say they have already chosen one of the candidates but could change their mind.
In the same poll, Kasich led Strickland by six points just one week ago and 10 points two weeks ago.
Separately, an Ohio Poll [pdf] sponsored by the University of Cincinnati attributed undecided voters to each candidate based on who they were most likely to back and projected Kasich would win the gubernatorial race by a 52 to 47.7 percent margin.
The gubernatorial contest has made national headlines in recent months thanks to campaign appearances by top surrogates of both political parties. President Obama and Vice President Biden campaigned for Strickland on Sunday; former President Bill Clinton and first lady Michelle Obama have also campaigned with the incumbent governor in recent weeks.
Three prominent conservative governors -Mississippi Gov. Haley Barbour, Minnesota Gov. Tim Pawlenty and New Jersey Gov. Chris Christie – joined Kasich on the campaign trail Friday.
The Ohio poll shows GOP Rep. Rob Portman with a massive 20-point lead over Democratic Lt. Gov. Lee Fisher in the race for governor. The Quinnipiac University survey puts the margin at 19 points and calls it "insurmountable."
The Quinnipiac University poll was conducted by phone from October 25-30 with 848 likely voters and has a sampling error of plus or minus 3.4 percentage points. The Ohio Poll was conducted by phone from October 27-31 with 930 likely voters and has a sampling error of plus or minus 3.2 percentage points.