A whistleblower in Nevada is claiming that elections officials willingly violated the rules for handling and counting mail-in ballots, according to the Nevada Republican Party.

“A whistleblower has come forward in Clark County saying they witnessed mail ballots being counted without signatures being verified,” the Nevada Republican Party wrote in a Twitter post Saturday.

The post included a Fox News clip from the weekend that reported the whistleblower has completed a sworn affidavit that has been sent to the Department of Justice for potential prosecution.