Jane Meredith Mayer is an American investigative journalist who has been a staff writer for The New Yorker since 1995. She has written for the publication about money in politics; government prosecution of whistleblowers; the United States Predator drone program; Donald Trump's ghostwriter, Tony Schwartz; and Trump's financial backer, Robert Mercer. In 2016, Mayer's book Dark Money—in which she investigated the history of the right-wing billionaire network centered on the Koch brothers—was published to critical acclaim.