(CNN) A racist robocall targeted Andrew Gillum days after the Tallahassee mayor won the Democratic nomination in the Florida governor's race, giving him a shot at becoming the state's first black chief executive.

The 78-second prerecorded message, obtained by CNN, is narrated by a man speaking in a caricature of a black dialect with cartoonish jungle noises in the background. It ends with a disclaimer that it was paid for by The Road to Power, a white supremacist and anti-Semitic video podcast hosted by Scott Rhodes of Idaho.

The phone message went to Florida residents, but it's unclear how many received it. The Tallahassee Democrat first reported the robocall.

The same neo-Nazi group recently sponsored robocalls in Iowa, using Mollie Tibbetts' death to attack Latinos and promote white supremacy, the Des Moines Register reported. There have also been reports the group previously targeted local officials in California, Virginia and Washington state.

The Gillum campaign's communications director, Geoff Burgan, said the robocall is "reprehensible -- and could only have come from someone with intentions to fuel hatred and seek publicity."

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