Republican candidate for Knox County sheriff, Mike Davis, is contesting the Republican Primary for sheriff after two of the former candidates were indicted.

The Tennessee Republican Party board has announced that it will meet at the TNGOP Headquarters next week to decide which Knox County Sheriff's candidate will be on the ballot in August...
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Just days after the election, second-place candidate David Amburn and fourth-place candidate Jimmy "J.J." Jones were indicted on felony charges of theft...
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State GOP chairman Scott Golden told 10News that during the June 10th meeting, anyone will be allowed to express their concerns to the board about the primary results.

Well... I could look at it a different way. The indicted candidates are still considered innocent, thus the primary election is valid, thus whoever won wins.