Akin has apologized for controversial comments about “legitimate rape” but has refused to leave the Missouri Senate race.
While he distanced himself from Priebus, he praised others Senate candidates like former Wisconsin governor Tommy Thompson, whom he called a "legend."
"It's like Harley Davidson, Miller Lite, Tommy Thompson," Priebus said. "He is a brand. He's going to win."
The RNC chairman predicted that the GOP has "great opportunities" and a good shot of winning in states including Nebraska, Hawaii and Florida.