The founder of PolitiFact, the Pulitzer Prize-winning, fact-checking website, looks at the problem in new book, “Beyond the Big Lie: The Epidemic of Political Lying, Why Republicans Do It More, and How It Could Burn Down Our Democracy.” Following several years of research and reporting, Adair ended up zeroing in on about a half dozen people’s stories in his book as case studies that reveal what he calls “truths about lying.” Adair pointed to a study he’s been a part of at Duke, about states where there is state and local fact-checking.