Elizabeth Warren would have made an excellent president. Warren, who announced her intention to run for the presidency this week, spent much of her career before entering politics in law, which she taught at universities around the country, including UT-Austin, Harvard, and Penn. Particularly expert in bankruptcy, middle-class personal finance, and consumer protection, since entering Congress in 2013, Warren has spent much of her time pushing for better regulation of financial institutions. She was, for example, essential to the creation of the Consumer Financial Protection Bureau (CFBP), a federal agency designed to protect Americans from unfair, deceptive, or predatory financial...