Illustration by David Drummond   (Photo: Shutterstock (White House, Picture Frame); iStock (Nature Painting))

Just before Thanksgiving, in an impassioned speech on the floor of the House of Representatives, Ron Paul called for Congress to be groped. The Transportation Security Administration, having rolled out its new airport body scanners, had decreed anyone who opted out could be subjected to the now-infamous enhanced pat-down. “Let’s make sure that every member of Congress goes through this,” Representative Paul said, waving his finger in the air. “Get the X-ray, make them look at the pictures, and then go through one of those groping pat-downs.” Perhaps this would put Congress in touch (quite literally) with real Americans.

Paul, the 75-year-old Texas libertarian and quixotic 2008 Republican candidate best known for his quest to abolish the Federal Reserve, is used to fighting lonely battles. But this time, he had company. Fox News went wall-to-wall on the (nonexistent) health hazards of body scans, naked outlines of passengers, and pat-down paranoia. “If you touch my junk, I’m going to have you arrested,” said newfound freedom fighter John Tyner to a TSA agent in a video that went viral. The left backed Paul too. Salon blogger Glenn Greenwald argued that the screenings had “all the ingredients of the last decade’s worth of Terrorism exploitation.” Blogger Jane Hamsher of Firedoglake called the X-ray devices “porno-scanners.” For one beautiful moment, the whole political spectrum—well, at least both vocal ends of it—seemed to agree: Too much government is too much government.

Maybe it was inevitable that the National Opt-Out Day, when travelers were going to refuse body scans en masse, failed to become the next Woolworth’s sit-in (how do you organize a movement that abhors organization?). It turned out most Americans actually supported the body scanners. But the moment was a reminder of just how strong, not to mention loud, the libertarian streak is in American politics.

No one exemplifies that streak more than Ron Paul—unless you count his son Rand. When Rand Paul strolled onstage in May 2010, the newly declared Republican nominee for Kentucky’s U.S. Senate seat, he entered to the strains of Rush, the boomer rock band famous for its allegiance to libertarianism and Ayn Rand. It was a dog whistle—a wink to free-marketers and classic-rock fans savvy enough to get the reference, but likely to sail over the heads of most Republicans. Paul’s campaign was full of such goodies. He name-dropped Austrian economist Friedrich Hayek’s seminal TheRoad to Serfdom. He cut a YouTube video denying that he was named after Ayn Rand but professing to have read all of her novels. He spoke in the stark black-and-white terms of libertarian purism. “Do we believe in the individual, or do we believe in the state?” he asked the crowd in Bowling Green, Kentucky, on Election Night.

It’s clear why he played coy. For all the talk about casting off government shackles, libertarianism is still considered the crazy uncle of American politics: loud and cocky and occasionally profound but always a bit unhinged. And Rand Paul’s dad is the craziest uncle of all. Ron Paul wants to “end the Fed,” as the title of his book proclaims, and return the country to the gold standard—stances that have made him a tea-party icon. Now, as incoming chairman of the subcommittee that oversees the Fed, he’ll have an even bigger platform. Paul Sr. says there’s not much daylight between him and his son. “I can’t think of anything we grossly disagree on,” he says.

There’s never been a better time to be a libertarian than now. The right is still railing against interventionist policies like TARP, the stimulus package, and health-care reform. Citizens of all political stripes recoil against the nanny state, which is nannier than ever, passing anti-smoking laws, banning trans fats, posting calorie counts, prohibiting flavored cigarettes, cracking down on Four Loko, and considering a soda tax in New York. All that, plus some TSA agent wants to handle your baggage.

Libertarianism has adherents on the left, too—they just organize around different issues. Whereas righty libertarians stew over taxes and bailouts, lefty libertarians despise de facto suspensions of habeas corpus, surveillance, and restrictions on whom you can marry. It’s not surprising that the biggest victories of the right and the left in the last weeks of this lame-duck session of Congress were about stripping down government—tax cuts and releasing the shackles of “don’t ask, don’t tell.”

Much of Americans’ vaunted anger now comes from a sense of betrayal over libertariansim shrugged. Right-wing libertarians charge that the Bush presidency gave the lie to small-government cant by pushing Medicare Part D, No Child Left Behind, and a $3 trillion war. Left-wing libertarians are furious that Obama talked a big game on civil liberties but has caved on everything from FISA to DOMA to Gitmo. Meanwhile, the country faces a massive and growing deficit (too much government!) that neither party has the power or the inclination to fix. If there were ever a time to harness libertarian energy—on left and right—it’s now.

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