Trump tweets mock video showing him beating man labeled CNN

File photo showing Republican US presidential candidate Donald Trump speaks at the Republican US presidential candidates debate sponsored by CNN at the University of Miami in Miami, Florida March 10, 2016. [Photo/Agencies]

It was not immediately clear who produced the brief video, which appears to be a doctored version of Trump's 2007 appearance on World Wrestling Entertainment Inc. The 28-second clip was posted on Trump's official Twitter account, with the message: "#FraudNewsCNN #FNN."The president in the past has branded the media as "the opposition party" and "the enemy of the American people." He has taken particular aim at CNN, calling the network "fake news."Trump stayed on the attack later in the day, stating on Twitter that "the dishonest media will NEVER keep us from accomplishing our objectives on behalf of our GREAT AMERICAN PEOPLE!"Bruce Brown, the executive director of the Reporters Committee for Freedom of the Press, condemned the video as a "threat of physical violence against journalists." He said Trump's tweet was "beneath the office of the presidency."A White House aide insisted the tweet should not send a chill across the media landscape.

"I think that no one would perceive that as a threat," homeland security adviser Tom Bossert said. "I hope they don't. But I do think that he's beaten up in a way on cable platforms that he has a right to respond to."CNN accused Trump of engaging in "juvenile behavior far below the dignity of his office."White House officials traveling with Trump during his weekend stay at his New Jersey golf club did not immediately respond to questions about who made the video or about any message the president might have intended to send.

The video appeared to be a doctored version of an appearance Trump made on a World Wrestling Entertainment Inc. show called "Battle of the Billionaires" in 2007, in which Trump appears to attack WWE CEO Vince McMahon.

McMahon's wife, Linda, who founded and built the company with her husband, now heads the Small Business Administration for Trump and was a generous benefactor to his campaign.

The video was posted several days ago by a Reddit user with the title, "Trump takes down fake news." It was not clear whether that was where it originated or where Trump found it. Still, the user wrote Sunday about being "honored" Trump had tweeted the video. The user who posted the video has a history of posts using anti-Muslim and anti-immigrant language.

The president's verbal shots against news outlets and individual members of the media have grown increasingly personal in recent days even as lawmakers in both parties say the insults only threaten to undermine his political agenda.

Trump has singled out MSNBC host Mika Brzezinski and CNN for some of his most biting criticism, and hardly is backing down in the face of widespread condemnation from the political class.