Story highlights Multiple videos show campaign manager Corey Lewandowski reaching for a man's collar

Trump's security detail also grabs him from behind

Campaign denies manager was part of altercation

(CNN) Donald Trump's campaign manager appeared to grab a protester by his collar during a rally Saturday in an incident captured on video.

Multiple videos, including CNN's footage, show campaign manager Corey Lewandowski reaching for the man's collar as a member of Trump's security detail also grabs him from behind.

"Corey Lewandowski was speaking with a protester at today's rally in Tucson, Arizona when the individual he was speaking with was pulled from behind by the man to Lewandowski's left," Trump campaign spokeswoman Hope Hicks said in response to a CNN inquiry, referring to a member of Trump's private security detail.

"The video clearly shows the protester reacting to the man who pulled him, not to Mr. Lewandowski," Hicks said, adding that Trump "does not condone violence at his rallies, which are private events paid for by the campaign."

Lewandowski and the young man appear to exchange words in the moments before the altercation. Hicks said Lewandowski "simply asked the protester to leave."

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