From The Man Who Wouldn’t Be King by Kevin Williamson in The National Review,

We could save ourselves some time and argument by noting that the American electorate gives relatively little indication that it is on the verge of a “libertarian moment,” or any other sort of philosophical moment. Psephological experience and current polling data both very strongly reiterate what any sentient person knows: The American people are incoherent and inconsistent when it comes to public policy, and they seem to have long been driven, in the main, by wishful thinking.

Senator Paul has in common with Barack Obama that his presidential ambitions began to stir quite early in his Senate career. But the two have very little else in common. Senator Paul’s rhetoric is not soaring, but cautious. Cautious about military adventuring, cautious about the role of narrow financial interests in driving Washington’s agenda, cautious about the power of the state, even cautious about his own ideological orientation: not libertarian, but “libertarian-ish.” He is notably cautious about what he thinks he can manage through legislation and, implicitly, as president. It is impossible to imagine him telling his supporters: “We are the ones we’ve been waiting for.” Likewise, it is difficult to imagine him unilaterally arrogating power to the Oval Office simply because Congress is not behaving to his liking or the Supreme Court is standing in his way.