“Mail-In Voting, unless changed by the courts, will lead to the most CORRUPT ELECTION in our Nation’s History! #RIGGEDELECTION,” Trump wrote.
Postal voting is not new in the United States – almost one in four voters voted in this way for the 2016 presidential election.
Routine methods and the decentralized nature of the US elections make it very difficult, according to experts, to interfere in ballot papers sent by post.
The Facebook label, which does not deny Trump’s claim, directs users to details of a U.S. government website on how to vote in the 2020 election.
Facebook has fueled employees and lawmakers for its decision not to respond to the President’s inflammatory posts, including one via mail-in ballot papers that Twitter has provided with a fact-checking label.
Facebook started adding links to relevant information to all posts related to federal candidate and elected official voting last week. The company declined to comment on Tuesday.
Mark Zuckerberg, Facebook’s chief executive, said in June that the labels were not “judging whether the posts themselves are correct, but we want people to have access to relevant information in both cases.”
Facebook runs a third-party fact-checking program but exempts politicians’ posts and ads from fact-checking.
The White House did not comment.