Elizabeth Warren is an American attorney and law professor. She is the Leo Gottlieb Professor of Law at Harvard Law School and has devoted much of the past three decades to studying the economics of middle class families. In the wake of the 2008-9 financial crisis, she became the chair of the Congressional Oversight Panel created to investigate the U.S. banking bailout (formally known as the Troubled Assets Relief Program). In that role, she has provided a critical check on the U.S. Department of the Treasury and has been a leading advocate for accountability and transparency.