This week, the White House appointed Lina Khan to chair of the Federal Trade Commission. The announcement came just hours after she was confirmed by the Senate to be a commissioner. At just 32, she’s the youngest-ever FTC chair. Khan rose to fame for a paper she wrote while at Yale Law School, making the case for reining in Amazon’s monopoly power. Khan went on to work on Capitol Hill, as an FTC staffer and as a professor at Columbia University’s law school. Marketplace’s Amy Scott speaks with Cecilia Kang, who covers tech policy for The New York Times. According to Kang, the difference between commissioner and chair is a big one.