The unanimous action sends Gov. Steve Sisolak results that will deliver six electoral votes from the battleground state to Biden.
Trump and his campaign have waged a war on the election system, relying heavily on baseless allegations of fraud in cities with large Black and brown communities.
Georgia's results showed Biden beating Trump by 12,670 votes out of about 5 million cast.
"This is an utterly brazen attack on our democracy," one election law expert said.
Trump supporters promoted a march to fight election results in "Georiga," which was depicted as a blue state.
For the first time, a sitting U.S. president tries to convince voters to not believe results clearly showing he lost.
The president-elect reached that number after multiple news organizations called Georgia for him on Friday.
Joe Biden and his team are working toward a smooth transition as Donald Trump and his supporters continue to make unsubstantiated claims of voter fraud.
Anchor Neil Cavuto said he “can’t in good countenance continue showing you this,” cutting into a presser led by White House press secretary Kayleigh McEnany.
These 2020 battleground states are still counting votes. Here are the rules for recounts if Trump and Biden go down to the wire.