The head of trading app Robinhood and Wall Street hedge fund managers on Thursday fielded a barrage of questions in the US Congress about their role in the GameStop trading frenzy, at times being cut off by irate lawmakers. <br /><br />WATCH MORE: https://thestartv.com/c/news<br />SUBSCRIBE: https://cutt.ly/TheStar<br />LIKE: https://fb.com/TheStarOnline
