PHOENIX — A judge has thrown out a Republican bid to undo Democrat President-elect Joe Biden’s victory in Arizona, concluding the GOP failed to prove fraud in a challenge of election results in metro Phoenix and that evidence presented at trial wouldn’t reverse President Donald Trump’s loss in the state.

Judge Randall Warner on Friday dismissed Arizona Republican Party Chairwoman Kelli Ward’s challenge of ballots in metro Phoenix that were duplicated because voters’ earlier ballots were damaged or could not be run through tabulators.

Poll observers called to testify by Ward said they witnessed problems in the processing of duplicated ballots, but the judge wrote that those problems were pointed out to election workers, who then fixed the mistakes.

Warner wrote “there is no evidence that the inaccuracies were intentional or part of a fraudulent scheme. They were mistakes. And given both the small number of duplicate ballots and the low error rate, the evidence does not show any impact on the outcome.”

Jack Wilenchik, Ward’s attorney, said the state’s GOP chief will appeal the decision to the Arizona Supreme Court. “We have a significant issue to litigate here,” Wilenchik said.