Danahar's letter said the press area "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", according to the BBC.
Skeans said he and his camera was nearly knocked over twice before the protester was wrestled away.
The attack did not go unnoticed by Trump, who later inquired if Skeans was okay by giving a thumbs up in his direction.
Skeans was accompanied by BBC's Washington producer and correspondent, Eleanor Montague and Gary O'Donoghue. After the attack, a Trump campaign official suggested that the attacker had been drunk.
Soundarya Rajinikanth, Vishagan Vanangamudi tie the knot; Celebs, politicians make a beeline
Soon after the bash, the Internet was flooded with videos of Rajinikanth dancing to 'Oruvan Oruvan Mudhalali' . Soundarya was earlier married to businessman R Ashwin, with whom she has a three-year-old son Ved.
Mr O'Donoghue added that he had been "spat at before". "The president of the United States should make absolutely clear to his supporters that violence against reporters is unacceptable", said WHCA President, Olivier Knox in a statement.
Something really bad is going to happen at one of these rallies someday, & Trump will still blame the media. "We all are concerned there will be something worse happening at some time in the future". "The crowd had been whipped up into a frenzy against the media by Trump and other speakers all night #TrumpElPaso".
Trump also stopped to ask the cameraman if he was okay.
Christopher Morrison, the study's lead author, told the New York Times a year ago that this violence was not a problem for rallies held by any other presidential candidates.
He held a rally just 200 yards from Trump's speech - which the US President boasted had "35,000" people in attendance.
The American president has a strained relationship with the media, and has often branded reporting as "fake news" and stated that journalists are "the true enemy of the people". The Columbia Journalism Review attributed that attack, in part, to President Trump's constant attacks on the media.