Congress questions Robinhood, Roaring Kitty and hedge funds over GameStop frenzy: CNBC After Hours

CNBC.com's Pippa Stevens brings you the day's top business news headlines. On today's show: a recap of the four-hour hearing on Capitol Hill on the jaw-dropping GameStop short squeeze engineered by retail traders in January. Plus, CNBC.com's Jacob Pramuk explains the debate in the Democratic party over student debt forgiveness.