US President Donald Trump said he has pardoned former Colorado elections clerk Tina Peters, who is serving a nine-year sentence for allowing unauthorised access to voting machines during the 2020 presidential election.
Presidential powers to pardon are widely understood to apply only to federal crimes - not those at a state level.
In a statement, Colorado Attorney General Phil Weiser said Trump's pardon has no legal precedent and "will not hold up".
Trump's powers to pardon are only applicable to federal convictions - not the state level charges Peters was jailed for.
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