The outcome of each could shift the balance of power in the General Assembly. Republicans are trying to hold their 22-17 Senate advantage, while Democrats are working to maintain their 64-36 majority in the House.

Here is a look at the races:

Senate: District 23, Kenton County

Two-term Republican Sen. Jack Westwood, a retired teacher, is challenged by Democrat Kathy Groob, a member of Fort Mitchell City Council and a marketing executive. Westwood said he could be effective because the GOP controls the Senate and holds the governor's office. Groob says Westwood has been ineffective and that a change is needed.

The district covers Covington, Erlanger, Edgewood, Elsmere, Fort Wright, Crescent Springs, Villa Hills, Bromley, Ludlow, Park Hills and Fort Mitchell.

Senate: District 17, Kenton County

Grant County Democrat Cliff Wallace, a retired school superintendent, is challenging GOP incumbent and thoroughbred racing executive Sen. Damon Thayer of Scott County. Thayer has heralded his work on the state budget, which includes more than $100 million for area projects including a major expansion for Northern Kentucky University. But Wallace said change is needed because Republicans have been unable to pass a budget.

The district covers Owen, Grant and Scott counties and southern Kenton County, including Taylor Mill and Independence.

House: District 67, Campbell County

With incumbent Rep. Jim Callahan, D-Wilder, retiring this year, the seat is open. Running are two people from Wilder: Republican lawyer Mark Hayden, and Democrat Dennis Keene, who owns a manufactured housing company.

Both candidates are running on platforms to bring new jobs to the district that covers Newport, Dayton, Bellevue, Southgate, Wilder and part of Highland Heights.

E-mail pcrowley@enquirer.com