Paul trails by a fair distance both Rick Santorum and Newt Gingrich, who has acknowledged Romney will likely win the nomination but is now reportedly trying to win enough delegates to adopt a series of proposals to hold Romney to conservative positions.

That plan has left more than a few people scratching their heads including Curson.

"He gets sidetracked too easily," Curson said of Gingrich. "It's too much. Here's my label and your label doesn't count."

Meanwhile, the 76-year-old Paul continues to drive home a range of causes, like eliminating the Federal Reserve and pulling U.S. forces out of Afghanistan. Those talking points gained currency over the course of the campaign, even as some opponents accused him of touting an isolationist foreign policy. Even Gingrich recently has drifted toward Paul on the prospect of an Afghanistan war pullout. 

Paul officials declined to comment to FoxNews.com on the state of the campaign.