Posted in NEWS Politics live updates: Biden to pick Katherine Tai as top trade envoy December 9, 2020 President-elect Joe Biden officially introduced retired four-star Army general Lloyd Austin as his nominee for secretary of the Defense Department. http://rssfeeds.usatoday.com/~/639985764/0/usatoday-newstopstories~Politics-live-updates-Biden-to-pick-Katherine-Tai-as-top-trade-envoy/