demanded that his preferred Florida candidates win without counting absentee and military voters?

In the 2018 Florida midterm and gubernatorial election, Republicans alleged widespread voter fraud. Neither the state’s monitors or law enforcement had any reason to believe it was the case.

Trump took to Twitter to demand that absentee ballots, which are largely from active duty military members, be ignored.

Trump also alleged widespread voter fraud in 2016, and created a commission to investigate, which found no evidence of fraud.

Snopes – Would a Proposal by President Trump Exclude Overseas Military Votes in Florida’s Elections?
Military Times – Are those Florida ballots that Trump says showed up ‘out of nowhere’ from military absentee voters?
Time – President Trump Attacked Mail-In Ballots in Florida. Here Are the Facts