Donald Trump's campaign chairman admitted on Sunday that he was unaware a senior staffer had recently suggested that Khizr Khan is undeserving of the title of "Gold Star parent."

"Look, I'll follow up on it. I'm not sure what he said," Paul Manafort told CNN's Jake Tapper when asked whether the campaign would dismiss Carl Paladino from his position as co-chair of Trump's New York campaign operation.

In a radio interview earlier this week, Paladino had said of Khan, the father of a fallen Muslim-American soldier, "I don't care if he's a Gold Star parent. He certainly doesn't deserve that title, okay."

Paladino had also suggested that Khan could be "a member of the Muslim Brotherhood or supporting ... the ISIS type of attitude against America."

Instead of reacting to Paladino's comments, Manafort turned his attention to Clinton, saying he was "concerned that the father of the Pulse cabaret murderer ... was sitting in the VIP section of [her] speech last week in Florida."

"All right, you didn't address the question at all," Tapper interjected.

"Well, I don't know about the quote. I don't know about the quote. I'd have to check into the situation," said Manafort. "Certainly, Mr. Trump has made it very clear he recognizes the sacrifices of all Gold Star parents and he's empathized for that loss, and he talked about the importance of having a policy that will reduce the risk of terrorist threats across the world, and we're going to talk more about that."

"Okay. Mr. Paladino, your New York co-chair, is attacking a Gold Star parent. You might want to look into that," Tapper told the Trump campaign chief.