President-elect Donald Trump's pick for treasury secretary, Steven Mnuchin, will face the Senate Finance Committee today. It promises to be a barnburner. Democrats are up in arms over the nomination of the former Goldman Sachs banker and film producer. One liberal group called him "a self-dealing Wall Street tool." Sen. Elizabeth Warren (D-Mass.), scourge of high finance, condemned the pick, and held a forum yesterday for Americans foreclosed on by a bank Mnuchin ran during the financial crisis.