However, Mr Trump appeared to suggest he still held hopes of retaining the presidency.
“I know one thing Joe Biden did not get 80 million votes,” he said.
“The only way he got 80 million votes is through massive fraud.”
Mr Trump suggested that medical workers, other frontline staff and elderly people would be the first to receive the vaccinations.
It is unclear which vaccine Mr Trump was referencing, or whether he was referring to a specific federal government policy for a vaccine distribution.