In Kentucky's 4th District race, conservative Democratic Rep. Ken Lucas defeated GOP challenger Geoff Davis.

CNN: Northup wins Kentucky district

In Kentucky's 4th District race, conservative Democratic Rep. Ken Lucas faces GOP challenger Geoff Davis.

CNN: GOP determined to hold onto House

Democrat Ken Lucas prevailed in Kentucky's 4th, left open as Republican Rep. Jim Bunning ran for the Senate.

CNN: Bellwether Kentucky, Indiana House races split