Trump interrupted his speech when he saw what was going on and said to Skeans, "You all right?" Skeans reportedly gave the president a thumbs up and the rally continued. "Everything OK? OK, thank you" after he noticed the commotion. He has often branded reporting he doesn't like as "fake news" and said that journalists are enemies of the people.
Officials with the Trump campaign did not immediately respond to requests for comment. Video from Skeans' camera showed the attacker shouting expletives about the media as he was being dragged away.
"We ask that anyone attending an event do so in a peaceful and respectful manner", Sanders said.
"There is a broader issue here which is that past year 80 journalists were killed across the world just for doing their job", Hunt said.
Footage from Ron Skeans' camera, the BBC cameraman who was shoved, shows that he and his equipment were knocked off balance for around 10 seconds as he was filming Trump's speech.
The BBC'sWashington correspondent Gary O'Donoghue described Monday's incident as "an incredibly violent attack" in an interview with his employer. Fortunately our cameraman is fine, he is made of stern stuff, ' O'Donoghue told the Today programme.
However, BBCWashington Editor Eleanor Montague, whom he was with, told BBC the protester had attacked other crews within the rally but Skean "got the brunt of it".
Mr Danahar pointed out "that access into the media area last night was unsupervised and that no member of law enforcement or security stopped the attacker entering, intervened when he began his attack or followed up on the incident with our colleagues afterwards". We have suffered a totally dishonest media and we've won, and it's driving them insane.
The White House Correspondents' Association has also condemned the attack.
Donald Trump's rise to becoming President has been marked by a hostile tone towards the vast swathes of the media, bar the outlets that support him such as the right-wing, Rupert Murdoch-owned broadcaster Fox News.