Florida's high-profile race for governor was close as well, but not enough to trigger a hand recount.
In a Facebook Live video with his wife, Gillum announced his concession and congratulated DeSantis on his victory.
"Congratulations to Andrew Gillum on having run a really tough and competitive race for Governor of the Great State of Florida", Trump tweeted.
Democrat Andrew Gillum says in ending his bid for Florida governor that the race "has been the journey of our lives" for the candidate and his wife R. Jai.
The machine recount that was launched this week showed that Gillum faced an insurmountable deficit against DeSantis, increasing the pressure on the Democrat to concede, according to The Tallahassee Democrat. "This fight for Florida continues".
Gillum initially conceded on election night, but later withdrew his concession after the margin between him and DeSantis narrowed during a recount.
Gillum spokesman Kevin Cate stressed yesterday that the push to count every vote is about more than finding a path to the governor's mansion for Gillum.
DeSantis's campaign did not respond to Gillum's remarks, pointing instead to a statement the former congressman put out two days ago. "Obviously we are now closing out the hand recount phase in two of the statewide races". "Now it's time to bring Florida together".
Gillum said in the coming weeks they hope to continue working to bring the Florida election system into the 21st century.
While the tone read uncharacteristically kind, the grammar was decided past tense, serving as the latest and loudest of political assessments on the state of Florida's gubernatorial race. Republican Rick Scott leads in that race.
The South Florida Sun-Sentinel posted video Saturday of Broward County Supervisor of Elections Brenda Snipes saying that 2,040 ballots had been "misfiled".
But attorneys for the Division of Electionssay some 3,688 vote-by-mail ballots and 93 provisional ballots got rejected statewide for bad signatures.
State officials ordered a manual recount on Thursday after a machine recount showed less votes in the county than the total number of votes reported to the state on November 10.
At least 44 out of 67 counties have finished their hand recount in the Senate race.