An edited video featuring Democratic presidential contender Joe Biden which was retweeted by US President Donald Trump has become the first to be marked "manipulated media" by Twitter.
According to a policy unveiled by Twitter last month, "significantly and deceptively altered or fabricated" media is likely to be labeled "manipulated" if it is found to be deliberately misleading.
White House Director of Social Media Dan Scavino originally tweeted the edited video which Trump later shared.
In the video, Biden appears to have mistakenly endorsed Trump for re - election, although he did not.
The edited video used footage from the former Vice President's speech in Kansas City on Saturday.
In the edited version of the video, Biden appears to say: "Excuse me.
We can only re - elect Donald Trump. "
What he actually said was: "Excuse me.
We can only re - elect Donald Trump if in fact we get engaged in this circular firing squad here.