WILMINGTON, DE - NOVEMBER 25:  President-elect Joe Biden delivers a Thanksgiving address at the Queen Theatre on November 25, 2020 in Wilmington, Delaware. As Biden waits to be approved for official national security briefings, the names of top members of his national security team were announced yesterday to the public. Calls continue for President Trump to concede the election and let the transition proceed without further delay. (Photo by Mark Makela/Getty Images)