The two could face off in a 2016 presidential primary.
House Democrats are struggling in districts where President Obama is unpopular.
Both parties transferred money to their Senate arms for the final stretch.
"The war on terror is not over," the Kentucky Republican says.
HIAWASSEE, Ga. — With a Michelle Nunn upset, Democrats could save Senate control.
Washington is the bluest state in the country, according to The Hill’s new rankings.
Alabama is the most Republican state in the country.
New rankings from The Hill list all 50 states from red to blue.
The DCCC is chipping in another $1.3 million to protect vulnerable incumbents.
The Speaker will swing through the state on Sunday and Monday to boost surging GOP hopefuls.