Mrs. Dow Jones on the GameStop trading saga and gamification of investing

The CEOs of Robinhood, Citadel, Melvin Capital, Reddit and "Roaring Kitty" Keith Gill are set to testify later this week to the House Financial Services Committee about the Reddit-driven market volatility we've seen the past several weeks. Haley Sacks, founder and CEO of Mrs. Dow Jones, has more than 300,000 followers across social media where she talks to millennials and Gen Z about the markets and investing. Sacks joined "Squawk Box" on Tuesday to discuss.