Former presidential candidate and Mitt Romney supporter John McCain (R-AZ) expressed Sunday morning his fatigue over the number of debates in this Republican nomination cycle.

"We've got to stop the debates," McCain told Meet The Press' David Gregory. "Enough with the debates, because they are driving up our candidates', all of them, unfavorability. We have enough of that. They've turned into mud wrestling instead of an exposition of all our candidates views. And it's time to recognize who the real adversary is, and it's not each other."

There have been a total of 19 GOP presidential debates this campaign season so far.

WATCH: Video from NBC, which was broadcast on January 29, 2012.

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