Who is nominated trade czar Katherine Tai? | CNBC Explains

Joe Biden has nominated Katherine Tai as the next U.S. Trade Representative. So, who is she, and what is the role of a trade czar? CNBC’s Nessa Anwar explains. ----- Subscribe to us on YouTube: http://cnb.cx/2wuoARM Subscribe to CNBC International TV on YouTube: https://cnb.cx/2NGytpz Like our Facebook page: https://www.facebook.com/cnbcinternational Follow us on Instagram: https://www.instagram.com/cnbcinternational/ Follow us on Twitter: https://twitter.com/CNBCi