This story is part of, CNET's coverage of the voting in November and its aftermath.
"We've added a label to this Tweet for making a potentially misleading statement regarding the process of mail-in voting, and to offer more context for anyone who may see the Tweet," said Twitter's safety team on Thursday. "This action is in line with our recently-updated Civic Integrity Policy."
Thatfocuses on Twitter cracking down on tweets that could misinform people about voting or disrupt the election.
In a tweet on Thursday, Trump claimed that the November election results may never be accurately determined because of the "unprecedented massive amount of unsolicited ballots which will be sent to 'voters,' or wherever." A label now appears below the tweet that reads "Learn how voting by mail is safe and secure" and links to a page with information about voting and the election.
Twitter added the same label to a follow-up tweet from the president on Thursday.
Despite election officials and the FBI saying it's, Trump continues to attack mail-in voting, claiming that it will lead to a chaotic Election Day outcome.
Twitter has labeled several of Trump's tweets before forand violating the site's other rules, including strictures against glorifying violence. Some tweets from politicians that violate the site's rules are labeled but left up because of public interest. Twitter has also .
Trump also lashed out at Twitter on Thursday. Without providing evidence, Trump accused the social network of intentionally promoting negative news about him in Twitter's trending section, an accusation the president has made before. Twitter earlier this month began on the platform through representative tweets and curated descriptions.