Trump told Acosta to "put down the mic" and a White House staffer tried to take the microphone from the CNN correspondent but he wouldn't give it up. In an explanation, Press Secretary Sarah Sanders lied.
Sanders did not disclose where she obtained the video.
When asked if he had "demonised immigrants" during the midterms campaign, Trump replied: "No, I want them to come into the country".
The White House is suspending the credentials of a CNN journalist hours after a testy exchange with US President Donald Trump.
"I was seated next to â¦Acostaâ© at today's press conference and did not witness him "placing his hands" on the young intern, as the White House alleges", Reuters correspondent Jeff Mason wrote on Twitter.
"Yes, the White House press office is sharing a manipulated video that makes it appear that Acosta was menacing the intern when he was not and did not".
In a statement, White House spokeswoman Sarah Sanders called Acosta's behavior "absolutely unacceptable" and said his White House press pass would be suspended "until further notice".
Sanders "provided fraudulent accusations and cited an incident that never happened", the USA cable network said.
"The most risky type of fake news and reporting and evidence is when you get into the fine details, the nuanced things that are shaped to present a certain viewpoint or decision or news a certain way", he said. "Jim Acosta is always the story".
"It's unfortunate the White House is saying this", he said.
The president complained that the media did not cover the humming economy and was responsible for much of the country's divided politics.
"They're actually not, because part of me will say this to everybody, I don't know how long I could be a nice person if I got my face yelled at constantly that I was fake and a liar and a awful person", Goldberg countered.
His exchanges with CNN's Acosta and another reporter for the NBC network turned bitterly personal, unusual even for the adversarial nature of presidential press conferences.
Reporters and historians said it was hard to recall a similar episode. Acosta made a decision to ask Trump why he seemingly "demonized" the immigrants traveling to the American border at the moment.
"Obviously I don't think anybody should have-any young woman, particularly-should have somebody swiping away at them and grabbing the microphone back", she added.
By the time I posed my question, the president had been pacing at the podium just moments before.
"CNN should be ashamed of itself having you work for them", the president said to Acosta.
During a news conference that morning, President Donald Trump called Acosta a "rude, bad person" as Acosta challenged the president's claims about Central American refugees fleeing to the U.S. "You shouldn't be working for CNN", he said. In particular, if you look at original, higher-quality videos from other vantage points, you can more clearly see that while there was some contact between the reporter and intern, he did not strike her as his hand comes down.