Trump shared a video message from hospital, reassuring people that he and wife Melania are 'doing well' after testing positive for coronavirus.
Around a minute into the video, Trump appears to suddenly convulse, his shoulders jolting as his lips pucker randomly.
People on Twitter reckon the footage may have been edited with Adobe Premiere, using a tool that is often used to remove unwanted stutters or pauses while smoothing out the cut to ensure the clip isn't disrupted.
Chris Evans, host of The Wine Therapy podcast, tweeted: "Trump coughed here after the word 'therapeutics' and it was edited out using the morph cut feature in @AdobePremiereCC."
Others soon agreed with Evans, including writer Christopher Orr, who wrote: "Clearly a cut here. Hard to imagine any rationale other than persuading the American public that he is healthier than he actually is."
A second person commented: "I noticed that too. I watched it several times. He also breathed heavily after each word."
Another added: "Omg the edited cough was so obvious."
Spotting another detail, a fourth also said: "The entire flag in the background goes pixelated when they make this edit on the cough.
"The end of the video has several more pixel changes too."
In the video, filmed in Trump's suite at the Walter Reed Medical Centre, the US president said he thought he would be back to work 'soon'.
He said: "I came here, wasn't feeling so well, I feel much better now. We're working hard to get me all the way back.
"Over the next period of a few days, I guess that's the real test.
"We'll be seeing what happens over those next couple of days."
Discussing his Presidential election campaign, Trump continued: "I'll be back, I think I'll be back soon, and I look forward to finishing up the campaign the way it was started and the way we've been doing and the kind of numbers that we've been doing."
The POTUS then joked that as his wife was 'slightly younger' than him she was handling it 'very nicely'.
In a statement released yesterday, Trump's physician said he was doing well but warned that he 'wasn't out of the woods yet'.
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