Yair was born and raised in New York, the son of two Jewish educators and the grandson of Holocaust survivors. As an undergrad at Harvard, he majored in Jewish studies and history, and served as the films editor of the Harvard Crimson. He wrote his senior thesis on Albert Einstein's 20-year friendship with an eclectic Orthodox rabbi, translating the two men's German correspondence and conversations about the Talmud, Zionism, race, and God. He fell into journalism quite by accident, when he discovered that people were willing to pay him money to say things he wanted to say anyway. Since then, he's covered the 2012 and 2016 U.S. elections, as well as the 2014 Israeli elections; he has interviewed and profiled multiple White House chiefs of staff and cabinet members; and written for The New York Times, Washington Post, The Atlantic, The Guardian, and the Wall Street Journal, among others. Presently, Yair is a senior writer at Tablet Magazine, where he covers politics, culture, and religion, tackling topics ranging from American Jewish responses to modern critical scholarship of the Bible to the forgotten history of Mormon-Jewish relations. In particular, he has chronicled the resurgence of antisemitism in Europe and, more recently, in America. In his spare time, he also builds bots that troll anti-Semites on Twitter.