The September 2019 registration application listed Trump’s legal residence as 1600 Pennsylvania Ave.

That created a potential problem for Trump: Florida law requires voters to be legal residents of the state.

A month later, Trump resubmitted his application to use a Florida address and in March he voted by mail in Florida’s Republican primary.

President Trump’s Florida voter registration form.

Trump’s original voter-registration application, which was obtained by The Washington Post via a public records request, was filed during a time when the president was making a highly publicized move to change his permanent residence from his Manhattan penthouse to Mar-a-Lago, his private club in Palm Beach, Fla.

On one of his forms that day he was telling Florida officials that his “legal residence” was Washington, D.C., and on another he was saying he was a “bona fide resident” of Palm Beach.

There has been at least one recent instance in Florida in which a public official faced legal consequences for registering to vote at an address that was not her legal residence.

In Palm Beach, where Trump has registered to vote, there was a high-profile arrest in 1993 of a popular restaurateur who was charged with voter fraud and briefly jailed because he registered to vote in Palm Beach but lived in the neighboring city of West Palm Beach.

Ocean Blvd., Palm Beach — the address of Mar-a-Lago — as his legal residence.

There also was another difference: Trump’s original voter-registration directed election officials to send his registration materials to Mar-a-Lago in care of another person — Sean McCabe, a vice president and general manager of Trump Florida Properties in the neighboring city of West Palm Beach.

Questions about the legality of Trump’s change of domicile surfaced in the past few weeks during an otherwise mundane fight he’s been waging since 2018 to persuade Palm Beach to let him build a dock at Mar-a-Lago.

Glenn Zeitz, a Philadelphia-area attorney who has a home in Palm Beach and has been informally advising the dock opponents, has said that the withdrawal has no bearing on the legal issues raised by Trump’s domicile issue.

Zeitz has said that Trump’s decision to use Mar-a-Lago as his domicile may represent “a substantial and serious potential legal impediment” to Trump registering to vote in Florida.

The revelation about Trump using an out-of-state address for his first voter application only adds more questions, he said.