“It was always going to take a special kind of leader to pick up Ted Kennedy’s mantle as senior Senator from Massachusetts—champion of working families and scourge of special interests. Elizabeth Warren never lets us forget that the work of taming Wall Street’s irresponsible risk taking and reforming our financial system is far from finished. And she never hesitates to hold powerful people’s feet to the fire: bankers, lobbyists, senior government officials and, yes, even presidential aspirants. Elizabeth Warren’s journey from janitor’s daughter to Harvard professor to public watchdog to U.S. Senator has been driven by an unflagging determination to level the playing field for hardworking American families like the one she grew up with in Oklahoma. She fights so hard for others to share in the American Dream because she lived it herself.” – Hillary Clinton, writing for TIME’s 100 Most Influential People series.