US President Donald Trump has told people in the state of North Carolina to vote twice in November’s election, despite this being illegal.
Mr Trump suggested voters vote once in person and a second time by post, in order to stress-test the system.
The president has frequently made false claims that postal votes are vulnerable to significant electoral fraud.
“Let them send it in and let them go vote,” he told North Carolina broadcaster WECT-TV on Wednesday.
“And if the system is as good as they say it is then obviously they won’t be able to vote (in person).”
After President Trump made the comments, North Carolina Attorney General Josh Stein tweeted that he had “outrageously encouraged” people in the state to “break the law in order to help him sow chaos in our election”.
“Make sure you vote, but do not vote twice!” Mr Stein added. “I will do everything in my power to make sure the will of the people is upheld in November.”
Democrats have also accused President Trump and the Republican party of attempting to suppress the vote in order to help their side in the election.
President Trump was in Wilmington, North Carolina, to formally designate the city an American World War Two Heritage City.
What are Trump’s claims – and is there any truth to them?
This isn’t the first time President Trump has made controversial comments about postal voting.
Speaking at the Republican National Convention (RNC) last month, he claimed “there’s tremendous fraud involved” with postal voting and that “we have to be very, very careful”.
But these claims have been strongly and repeatedly debunked by experts.
Ellen Weintraub, commissioner of the Federal Election Commission, responded at the time that “there’s simply no basis for the conspiracy theory that voting by mail causes fraud”.