Donald Trump has called for November’s presidential election to be postponed, saying increased postal voting could lead to fraud and inaccurate results, the BBC reports.
He suggested a delay until people can “properly, securely and safely” vote.
In a series of tweets, Mr Trump said “universal mail-in voting” would make November’s vote the “most inaccurate and fraudulent election in history” and a “great embarrassment to the USA”.
He suggested – without providing evidence – that mail-in voting, as it is known in the US, would be susceptible to foreign interference.
“The Dems talk of foreign influence in voting, but they know that Mail-In Voting is an easy way for foreign countries to enter the race,” he said.
Mr Trump also said postal voting was “already proving to be a catastrophic disaster” in areas where it was being tried out.
Earlier this month, six US states were planning to hold “all-mail” ballot elections this November: California, Utah, Hawaii, Colorado, Oregon and Washington.
These states will automatically send postal ballots to all registered voters, which then have to be sent back or dropped off on election day – although some in-person voting is still available in certain limited circumstances.