It was early March, not yet two months into the Trump administration, and the new Not-Normal was setting in: It continued to be the administration’s position, as enunciated by Sean Spicer, that the inauguration had attracted the “largest audience ever”; barely a month had passed since Kellyanne Conway brought the fictitious “Bowling Green massacre” to national attention; and just for kicks, on March 4, the president alerted the nation by tweet, “Obama had my ‘wires tapped’ in Trump Tower.”

If the administration had tossed the customs and niceties of American politics to the wind, there was one clearly identifiable constant: mendacity. “Fake news” accusations flew back and forth every day, like so many spitballs in a third-grade classroom.

Feeling depressed about the conflation of fiction and fact in the first few months of 2017, I steered a car into the hills of Calabasas to meet with one person whom many rely on to set things straight. This is an area near Los Angeles best known for its production of Kardashians, but there were no McMansions on the street where I was headed, only old, gnarled trees and a few modest houses. I spotted the one I was looking for—a ramshackle bungalow—because the car in the driveway gave it away. Its license plate read SNOPES.

David Mikkelson, the publisher of the fact-checking site Snopes.com, answered the door himself. He was wearing khakis and a polo shirt, his hair at an awkward length, somewhere between late-­career Robert Redford and early-career Steve Carell. He had been working alone at the kitchen table, with just a laptop, a mouse, and the internet. The house, which he was getting ready to sell, was sparsely furnished, the most prominent feature being built-in bookcases filled with ancient hardcovers—“there’s a whole shelf devoted to the Titanic and other maritime disasters,” Mikkelson told me—and board games, his primary hobby.

Since about 2010, this house has passed for a headquarters, as Snopes has no formal offices, just 16 people sitting at their laptops in different rooms across the country, trying to swim against the tide of spin, memes, and outright lies in the American public sphere. Just that morning Mikkelson and his staff had been digging into a new presidential tweet of dubious facticity: “122 vicious prisoners, released by the Obama Administration from Gitmo, have returned to the battlefield. Just another terrible decision!” Trump had the correct total, but the overwhelming number of those detainees had been released during the George W. Bush administration. “There’s a whole lot of missing context to just that 122 number,” Mikkelson said.

There are other fact-checking outfits, like PolitiFact, which is operated by the Tampa Bay Times, or FactCheck.org at the Annenberg Public Policy Center at the University of Pennsylvania. But Snopes has kicked around the internet since 1994—which makes it almost as old as what we once called the World Wide Web. In this age of untruth, it has become an indispensable resource. Should your friend’s sister start a conspiracy trash fire in a Facebook comment thread, Snopes is a reliable form of extinguisher. Because of this reputation, Snopes was listed as a partner in a Facebook fact-­checking effort announced last fall after the social media giant acknowledged it had become a conduit for fake news. Potentially false stories could be flagged by users and an algorithm, and then organizations like Snopes, ABC News, and the Associated Press would be tasked with investigating them.

As pretty much anyone knows, the truth can be a slippery bastard. Getting to the bottom of something requires what you might generously call a fussy personality. Mikkelson possesses that trait. He spends hours writing a detailed analysis of a claim and feels frustrated when readers just want a “true” or “false” answer. He’s got the world­view of Eeyore, had Eeyore been obsessed with cataloging the precise history, variety, and growing seasons of thistles in the Hundred Acre Wood. He can even get pessimistic about whether his work makes a difference. “Since a lot of this stuff is really complicated, nuanced stuff with areas of gray, it requires lengthy and complex explanations,” he said. “But a lot of the audience, their eyes just tend to glaze over, and it’s just, they don’t want to have to follow all of that. So they just fall back on their preconceptions.”