Vice President-elect Joe BidenJoe BidenDeputy AG: DOJ investigating fake Trump electors On The Money — Vaccine-or-test mandate for businesses nixed Warner tests positive for breakthrough COVID-19 case MORE praised President-elect Barack Obama's choices to round out his national security team Monday, in one of the few public speaking opportunities for Biden since the election last month.

"I have worked with and admired each member of this team," Biden said. "Each has a clear understanding of the forces that are shaping this new century."

Detailing threats from terrorism, energy shortage, and a host of other issues, Biden cited the "extraordinary" challenges that the new administration will face come January.

"The president-elect has assembled a national security team that is poised to recapture the totality of America's strength," Biden said.

-Michael O'Brien