Donald Trump has denied posing as his own spokesman John Miller in the 1990s after an audio tape was published.

The Washington Post has obtained a 1991 phone conversation between a PR man calling himself John Miller, but sounding like Donald Trump, and a reporter.

However, the Republican presidential hopeful said the voice on the tape did not belong to him.

Reporters who covered Donald Trump’s early career say they regularly spoke to a Trump spokesman sounding exactly like him.

They would hear from the “spokesman”, named as John Miller or John Baron, when asking to interview Donald Trump.

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In response to the Washington Post story on May 13, Donald Trump made his denial on the Today Show saying: “No, I don’t know anything about it.

“You’re telling me about it for the first time and it doesn’t sound like my voice at all.”

“I have many, many people that are trying to imitate my voice and you can imagine that. This sounds like one of these scams, one of the many scams. It doesn’t sound like me.

“It was not me on the phone. And it doesn’t sound like me on the phone, I will tell you that. It was not me on the phone.”

However, in 1990, Donald Trump admitted in court he and one of his employees used the name “John Baron” in business dealings during a case about undocumented Polish workers constructing Trump Tower.

A lawyer for the workers said he received a call from someone named “Mr. Baron” who threatened to sue if he did not drop a lawsuit over withheld pay for the workers, the New York Times reported.

A reporter for People magazine contacted Donald Trump’s office in 1991 to interview him about the end of his marriage to Ivana Trump and his relationship with model Marla Maples.

The “media spokesman” called the reporter, Sue Carswell, back and began telling her about why Donald Trump had broken up with Marla Maples for Italian model Carla Bruni.

The man claiming to be John Miller said: “He really didn’t want to make a commitment.

“He’s coming out of a marriage, and he’s starting to do tremendously well financially.”

Once, John Miller slipped out of talking about Donald Trump in the third person in a conversation with Sue Carswell, but quickly corrected himself.