“Black Lives Matter” agitators decided to show up outside Donald Trump’s meeting with pastors and business leaders in Philadelphia today.

So did Jerry Lambert.

Jerry Lambert, from Bucks, says he wants Asa Khalif arrested for assault. #Trump pic.twitter.com/5c7C30AkpW — Jason Nark (@JasonNark) September 2, 2016

Lambert, dressed in a coat and tie, wanted to peacefully protest alongside the agitators to exercise his First Amendment right.

But the activists had no interest in respecting it.

Video shows Black Lives Matter supporters grabbing Lambert’s signs — which read “I Love Walls” and “Democrat for Trump” — away from him.

A Trump supporter showed up outside his event. Then this happened. pic.twitter.com/74xQ2Sk6Mi — Dan McQuade (@dhm) September 2, 2016

Police intervened as Lambert tried to get them back.

Jerry Lambert now has a police guard for his pro-Trump demonstration after someone briefly took his sign. pic.twitter.com/Wk8Mkgvyox — Dan McQuade (@dhm) September 2, 2016

Lambert said he wanted to alleged perpetrator, Asa Khalif, arrested for assault, but that didn’t appear to happen.

In fact, video showed Lambert being manhandled by the police after the incident: