Rand Paul Edges Away From His Father's Foreign Policies

In South Carolina, the candidate espouses a middle ground of restraint.

"We need a national defense robust enough to defend against all attack, modern enough to deter all enemies, and nimble enough to defend our vital interests," Paul said. "But we also need a foreign policy that protects American interests, and encourages stability, not chaos."

Already under attack from a conservative group airing a TV ad that criticizes Paul for supporting negotiations with Iran, he has hit back in interviews at the "neocon community" that supported war in Iraq.

In South Carolina, he turned that message on his presidential competitors.

"I think there is no greater responsibility for any legislator or leader than to determine when we go to war," Paul said. "The consequences are potentially ominous. That responsibility should never be given to any individual who frivolously or cavalierly calls for war."

In his South Carolina speech, Paul advocated both combating jihadist terrorists -- "The enemy is a barbarous aberration. The enemy is radical Islam. I will not only name the enemy, I will do everything in my power, everything it takes to defend America from these haters of mankind," he said -- and to exercise restraint in military endeavors: "A government inept at home will not somehow succeed at nation-building abroad," he said.

Paul sounded some of the same notes hit by both his father and the anti-war left regarding the later Bush years: suggesting that America should rebuild at home before starting wars and propping up governments abroad.

Rand Paul, who called for ending all foreign aid in his early days as a senator, now says ending some aid should be an ultimate goal but not an immediate policy measure.

He also presented his own version of American exceptionalism -- the idea, favored by George W. Bush's neocon supporters, that America is better than other nations and has greater responsibilities as such.

"We're still exceptional," Paul said. "We're still a beacon of the world. We will thrive when we believe in ourselves again."