Omarosa said at one point, telling Gordon, "Don't be aggressive", and standing up from her chair.
Mr. Gordon replied that he was not suggesting that, and that he would like to finish asking the question. "I will never forget the people who turned their backs on me when all I was trying to do was help the black community", she once told a reporter. "I don't want to hear a lecture".
Moderator and broadcast journalist Ed Gordon stepped in at the last minute, but he sparred with Manigault, nearly as soon as she stepped on stage.
"I deeply respect the NABJ as an important institution for black voices in mainstream media", Packnett said after the panel. "Walking into a room where you get shut down does not open a line of communication so change can happen".
"It would be foolhardy that we could assume that anyone would come here and sit here and not ask certain questions", Gordon said. His response: "O.K., boo, play it".
Panel moderator Ed Gordon, host of BET's "Weekly", asked Manigault-Newman how Trump's recent comments supporting police brutality fit with police violence in the black community, including the police killing of Freddie Gray in Baltimore.
She was asked about the Trump administration's policies on policing, and, at one point, said she couldn't share private conversations with the president.
Manigault-Newman could not say what, if anything, she had done to address these issues within the administration, but continuously defended her role as a convener. She wanted to kill my career.
All day Thursday, as word spread that Manigault would be on the panel, attendees expressed private dismay that she had been invited to participate with the relatives of Castile and Sterling, even after Trump's comments about police treatment of suspects.
"When you see these towns and when you see these thugs being thrown into the back of a paddy wagon - you just see them thrown in, rough - I said, please don't be too nice", Trump said.
Castile and Sandra Sterling at the NABJ panel.
Manigault-Newman's presence on stage, along with journalists and activists focused on police brutality and family members of black men killed by police, roiled the annual convention of black current and former journalists and public relations professionals.
Omarosa ended up walking off the stage before the end of the panel, according to Buzzfeed.