Biden to bring in national security experts after briefings denied
Biden's team is pressing ahead with a transition despite President Donald Trump's refusal to concede.
Former U.S. Vice President Joe Biden accepts the 2020 Democratic presidential nomination during a speech delivered for the largely virtual 2020 Democratic National Convention from the Chase Center in Wilmington, Delaware, U.S., August 20, 2020(photo credit: REUTERS/KEVIN LAMARQUE)