A 2021 clip of Donald Trump, which stitched together two different parts of a speech to make it look like a single continuous section, was likely done for dramatic effect, reporter Enda Brady has told Behind the Story.
It comes as the US President is threatening legal action against the BBC over the way a documentary used an edited clip of his speech.
It follows the resignation yesterday of the corporation's Director-General Tim Davie and its CEO of News Deborah Turness over the editing of the Panorama documentary.
"What they’ve done here is, quite deliberately, edit Mr Trump – as he then was – and they’ve made him say something that he clearly did not imply in the speech," he said.
"This was done for dramatic effect; it was also very wrong on a journalistic front."
Mr Brady said he was "amazed" it took a year for this to surface as part of a review of editorial guidelines.
Mr Brady believes the BBC could have moved faster on the issue.
"The thing to have done last week, as soon as that story hit The Telegraph, was to come out, hold their hands up and apologise to Trump," he said.
"But because they didn’t apologise and they didn’t deal with it quickly they’re now looking at legal action from President Trump."
Recalling his career, Mr Brady said journalists "have a responsibility to get the facts rights".
"But this was clearly a decision that was taken in an edit suite, and they got it wrong," he added.
Fran McNulty and Aisling Kenny also discussed long waiting lists, with children waiting up to 13 years to see a primary care psychologist.
Figures obtained by RTÉ News show there are currently over 28,000 children waiting to see a primary care psychologist, and over 15,000 of these children have been waiting for over a year.
You can listen to Behind the Story which is available on the RTÉ Radio Player.
You can also find episodes on Apple here, or on Spotify here.