In the Ohio Senate race, a new poll shows the Republican nominee edging out the Democrat by one percentage point.
Nine percent of respondents said they were undecided, and the survey showed that 45% of respondents supported Ryan.
Vance had a one-point lead among voters who said they were likely to vote.
9% of GOP respondents crossed over to back Ryan, despite the fact that 85% of Republicans supported him.
The author of " Hillbilly Elegy" performed well in western Ohio, where he led Ryan by 40 percentage points, and in the southern part of Ohio, where he held a 28 point lead.
Ryan has been able to stay competitive in the Republican-friendly Buckeye State because he has consolidated the Democratic base while also performing well with independents.
Ryan had a two-point lead with independents and was supported by nearly one-in-ten Republicans.
Ryan won 45% of the votes of white voters in Ohio, compared to 45% for the Republican nominee.
Ryan had a big lead among nonwhite voters.
Ryan leads in three critical regions where he needs to deliver robust margins in order to win the statewide election.
In the Cincinnati area, where Hamilton County has become more supportive of Democratic candidates in statewide races, Ryan held a 45% to 45% lead over Vance.
Inflation, the preservation of democracy, and abortion were the top issues for respondents.
The Democratic nominee has sought to highlight Ryan's opposition to free-trade deals that led to the decline of manufacturing jobs in the state.
Republican Gov. Mike DeWine had a big lead over his opponent in the race for governor.
DeWine had a big lead among those who said they would definitely head to the polls.
DeWine got the support of almost all of the Republicans and 10% of the Democrats.
DeWine had a 22 point lead over Whaley.
The governor was the leader in every region of the state, including the Cleveland area, where he beat Whaley by a wide margin.
The survey had a margin of error of plus or minus 3.6percentage points.