Elizabeth Warren used to be a Republican, until her research into personal bankruptcy revealed that the problem wasn’t “deadbeat” debtors – but personal misfortune and a predatory loan industry.

Still just a professor, she proposed a new federal agency, the Consumer Financial Protection Bureau, that would protect consumers from deceptive behavior by the financial industry. And she convinced Congress to sign it into law.

Warren never wanted to get into politics, but at 62 ran for US Senate, her first elected office – after witnessing the stranglehold of powerful industries over government, and feeling called to fight back.