Rupert Murdoch, the 83-year-old CEO and founder of News Corp., says supporting Sen. Rand Paul, R-Ky., for president may be too big a leap for him. In an interview with Fortune magazine , the Australian-born media mogul pinpoints the Kentucky freshman as the one White House aspirant with whom he differs with on big issues.



Of the five GOP candidates Murdoch mentions in the interview, Paul was the only one to be singled-out as a potential non-starter.

[READ: Why Rand Paul's the Current GOP Front-runner]

Murdoch called Jeb Bush a "man of very fine character," and described Rep. Paul Ryan, R-Wis., as "the straightest arrow I've ever met" as well as "the natural leader." He also predicted Gov. Chris Christie "could recover" from controversy in New Jersey.

He said he knew the least about Wisconsin Gov. Scott Walker.

As for Paul, it's likely that Murdoch's disagreements with him are centered around foreign policy.

Staying true to his libertarian core of anti-interventionism while reassuring Republican leaders he isn't a strict isolationist is arguably Paul's biggest challenge in capturing the 2016 GOP nomination.

