(Reuters) The Supreme Court of Nevada rejected an appeal late Tuesday from President Donald Trumps campaign to overturn the election results in the state, affirming President-elect Joe Biden s win in one of the battleground states that gave him overall victory.

It was the latest court failure for Trump and his allies, who have lost dozens of cases in state and federal courts in an unsuccessful attempt to nullify the result of the Nov. 3 election. Trump says the result was fraudulent, but no court has found evidence to support his assertions.

Last week, a district court in Nevada ruled that the Trump campaign had not proven a claim that there had been a malfunction in voting devices and the contest between Trump and Biden had been manipulated.

We also are not convinced that the district court erred in applying a burden of proof by clear and convincing evidence, as supported by the cases cited in the district courts order, Nevadas Supreme Court said in its judgement.

Nevadas Republican Party said it was extremely disappointed by the decision.

We were not afforded an opportunity to write our brief or argue the case in front of the Court, Nevadas GOP said https://nevadagop.org/nevada-gops-statement-on-the-nevada-supreme-courts-ruling in a statement. Full denial of legitimate due process and appellate rights is truly unprecedented, shocking and extraordinary.

Biden won Nevada by a 33,596-vote margin, giving him the states six votes in the Electoral College which choses the president. The electors are scheduled to meet on Dec. 14 to formalize the outcome, with Biden having won 306 votes to 232 for Trump.

Tuesday was marked as the so-called safe harbor deadline for states to resolve disputes arising from the election. Under U.S. law, Congress will consider a states election result to be conclusive if it is finalized by the safe harbor date.

(Reporting by Aakriti Bhalla in Bengaluru; Editing by Peter Graff)