Trump and Acosta have long have a contentious relationship as the CNN reporter often asks the president questions that seemed created to illicit a reaction from him.
The video appears to be taken from fringe far-right website InfoWars to make it look like Acosta chopped down on the intern's arm.
Sanders' tweet of the edited video, in which she said the White House would "not tolerate the inappropriate behaviour clearly documented in this video", has at least 20,000 retweets and more than 2 million views.
Eventually NBC reporter Peter Alexander took the microphone and defended his fellow reporter, despite him being from a separate network, calling him a "diligent reporter" - which only proved to anger Trump more.
He was later turned away at the White House press centre by secret service officers.
Breaking Bad Is Getting a Feature Film
Better Call Saul executive producers Mark Johnson and Melissa Bernstein are rumored to be involved, too. The previous report noted that production would commence in New Mexico next month.
"It was done in retaliation for his challenging questions at today's press conference", CNN communications said in a statement posted to Twitter. Acosta started his question by quoting a poem etched at the base of the Statue of Liberty and asked whether the government was rigging the system for Great Britain and Australia.
"When you report fake news, which CNN does a lot, you are the enemy of the people", Trump said to Acosta when he protested again.
Acosta responded that Sanders' description of events was "a lie".
A White House staff member reaches for the microphone held by CNN's Jim Acosta during a news conference at the White House in Washington, November 7, 2018.
Mr Trump took the rare step of mocking Republican candidates who kept their distance from him during the campaign because of concerns that his divisive messages on immigration would turn off voters - but lost anyway.
Chinese staff forced to drink urine and eat roaches
The employee added that the firm threatened to reduce their severance pay should they resign from their jobs. In the video, which has been deleted, a topless man can be seen standing in the middle of a room.
Rotating strikes for Canada Post hit Toronto
In recent years, said Hamilton, the corporation's parcel deliveries have seen double-digit yearly increases. So far, 90 communities have been hit with the rotating strikes since they began October 22, said Hamilton.
Midterms 2018: Firsts for women in the US House
She'll be joined by Michigan Democrat Rashida Tlaib - also a Muslim and the first Palestinian-American to serve Congress. Another important trend from this year's exits (and any year's) is how gender interacts with race and education.
Boult hat-trick fuels New Zealand's win over Pakistan
Boult becomes the fifth New Zealander to claim an ODI hat-trick, joining Shane Bond, Emily Drumm, Julie Harris and Danny Morrison. The Pakistan innings got off to a disastrous start with Trent Boult taking a hat-trick in his second over.
Muslim women elected to US Congress for the first time
Republicans who charge that the Democratic Party has departed from its pro-Israel bona fides point to Tlaib and Omar as proof. Tlaib explicitly supports the destruction of the Jewish state of Israel and its replacement of a unitary Palestinian state.
Democrats win House control
In south Florida , former Health and Human Services Secretary Donna Shalala defeated Republican Maria Elvira Salazar. The Democrats benefited from extraordinary voter enthusiasm, robust fundraising and unusually fresh candidates.
Super Smash Bros. Ultimate Demo Rolling Out To Best Buy Kiosks
When he uses it, he transforms into a stereotypical Indian wearing a loincloth and feather, and he attacks with a flaming torch. The floodgates are closed, it seems, but that doesn't take away the fact that Super Smash Bros . "It means the world".
Could Steelers use franchise tag on Le'Veon Bell again?
Fitness who has spent past offseasons working out there, recently left Miami, where he has trained while away from the Steelers . It appears that speculation has been confirmed as Bell approaches a deadline to join the Steelers this year.