Arizona’s Maricopa County announced Monday that it will replace voting equipment that was turned over to a private contractor for a Republican-commissioned review of the 2020 presidential election, concerned that the process compromised the security of the machines. Officials from Maricopa, the state’s largest county and home to Phoenix, provided no estimates of the costs involved but have previously said that the machines cost millions to acquire. “The voters of Maricopa County can rest assured, the County will never use equipment that could pose a risk to free and fair elections,” the county said in a statement. “As a result, the County will not use the subpoenaed equipment in any future elections.” The announcement probably reflects an added cost to taxpayers for a controversial review that has been embraced by supporters of former president Donald Trump, who has falsely claimed that the 2020 election was rigged in Arizona and other battlegrounds that he lost.