Republican presidential candidate Rick Santorum says Fox News has already decided which candidate they are supporting.

In an interview on Fox News Radio on Tuesday, the former Pennsylvania senator told host Brian Kilmeade that the conservative television network had been "shilling" for Mitt Romney.

"This man has had a 10-to-1 money advantage," Santorum explained. "He has Fox News shilling for him every day. No offense, Brian, but I see it."

Kilmeade, who also co-hosts the Fox News morning show Fox & Friends, quickly objected.

"Senator, on Fox News shilling for Mitt Romney 24 hours a day, I totally disagree with that," Kilmeade said. "You can feel the way you want. I'm just telling you, there's no way I agree with that."

"I can tell you we watch the coverage there," Santorum replied. "And, you know, look, you guys are allowed to cover what you want to cover, but I can tell you we want to make sure a conservative is nominated."

Kilmeade admitted that Romney's campaign had done a better job responding to requests from Fox News.

"You know, I hear you, Brian," Santorum remarked. "I love coming on your show and I'm happy to come on as many times as I possibly can."

Watch this video from Fox News Radio's Kilmeade & Friends, broadcast March 13, 2012 and uploaded by The Daily Caller.

(H/T: The Huffington Post, The Daily Caller)