(CNN) A new poll out by Quinnipiac University shows Florida governor's race within to be basically neck and neck, with Tallahassee Mayor Andrew Gillum, the Democrat, up by three points against Republican Rep. Rob DeSantis.

The race will be one of the closely watched contests in November since DeSantis has tied himself to President Donald Trump and defeated more establishment Republicans. Gillum, meanwhile, would become the state's first black governor, and has the backing of progressives like Bernie Sanders. In the primary, he was the only Democrat running who supported "Medicare for all" single-payer health care.

Most likely voters have their minds already made up; 94% said they won't change their mind on who to vote for before the election. That number didn't change dependent on which candidate they had picked.

The poll was conducted during the time in which a racist robocall targeting Gillum was running and in the news.

The poll suggests and extreme divide along party lines. Ninety-two percent of Republicans plan to vote for DeSantis and 93% of Democrats said the same of Gillum. But Gillum does hold an advantage among independents, with a majority (55%) saying they plan to vote for him in November.

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