A poll of Republican voters in Comgressional District 7 shows four candidates in a dead heat. (Photo: Getty Images)

A poll released Tuesday shows a dead heat between the top four Republican candidates vying to succeed former U.S. Rep. Mark Green in Tennessee’s 7th Congressional District.

The poll, conducted by Spry Strategies for Americans for Prosperity Tennessee — a conservative political advocacy group — polled 500 registered voters in the district who said they plan to vote in the Oct. 7 primary.

Williamson County state Reps. Gino Bulso of Brentwood and Lee Reeves of Franklin tied with 19.9% each when respondents were asked to select their preference during the Aug, 19 to Aug. 23 polling period. Dickson Rep. Jody Barrett followed with 18.6% and Matt Van Epps, former commissioner of

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