Hillary Clinton’s campaign is trying to tightly control who talks to her about race issues.

Clinton’s campaign tweeted during her town hall meeting with MSNBC’s Rachel Maddow that “I have to talk about [racism] more” because “we are not a post-racial society.”

"As a white person, I have to talk about [racism] more. We are not a post-racial society." —Hillary to @Maddow #MSNBCTownhall — Hillary Clinton (@HillaryClinton) April 26, 2016

Literally one minute after Clinton made that declaration, New York Daily News columnist Shaun King tweeted a video purporting to show a man wearing a “Black Lives Matter” t-shirt being prevented from entering a Clinton event in Philadelphia on the same day.

Man refused entry into a Hillary Clinton rally in Philly for wearing a #BlackLivesMatter t-shirt.https://t.co/1pIyeXmI29 — Shaun King (@ShaunKing) April 26, 2016

Event security claimed that the event was “permitted,” and as such, they could pick and choose who was allowed to have an audience with Hillary.

The man asked the security officer if he would get a Secret Service agent for him to discuss the matter with and the officer flatly said, “No. I have other things to do.”

A female officer said he could talk to a Secret Service agent after the entire line was gone.