For the first time, Twitter put a warning label under two posts by Donald Trump, prompting the US president to accuse the it of "interfering" in the presidential election and even threatened to close down the social media platforms. Twitter highlighted two of Trump's tweets on Tuesday that falsely claimed mail-in ballots would lead to widespread voter fraud in the elections, appending a message the social media giant has introduced recently to fight misinformation or unverified claims. "There is NO WAY (ZERO!) that Main-in Ballots will be anything less than substantially fraudulent. Mail boxes will be robbed, ballots will be forged & even illegally printed out & fraudulently signed. The Governor of California is sending Ballots to millions of people, anyone.....," Trump tweeted. Twitter's notification displays a blue exclamation mark underneath the two tweets, suggesting readers "get the facts about mail-in ballots".

Trump, who has some 80 million followers on Twitter, responded by tweeting again, saying the social media company "is completely stifling free speech". "Twitter is now interfering in the 2020 Presidential Election. They are saying my statement on Mail-In Ballots, which will lead to massive corruption and fraud, is incorrect, based on fact-checking by Fake News CNN and the Amazon Washington Post....," a visibly upset Trump tweeted. "Twitter is completely stifling FREE SPEECH, and I, as President, will not allow it to happen!" he said in another tweet. Later on Wednesday morning, Trump threatened to close down social media platforms like Twitter. "Republicans feel that Social Media Platforms totally silence conservatives voices. We will strongly regulate, or close them down, before we can ever allow this to happen," Trump tweeted.