The ruling leaves Linn ten signatures short of the 2,000 he needs to qualify for the ballot.
The signatures were invalidated after Linn’s rival, Republican candidate Eric Brakey, uncovered more irregularities in Linn’s ballot petitions, including forged signatures of dead people.
Linn’s campaign had argued that Dunlap abused his discretion as a fact-finder.
Superior Court Judge William Stokes disagreed.
Linn has previously indicated that he’ll continue fighting to remain in the ballot.