How about Breitbart news itself?
“A senior White House aide informed Breitbart News that the Daily Mail report was ‘totally false’ and called into question the sources in the article of having any real knowledge of the Trump family.”
Yes, BN posts a story, and then they are contacted by a “senior WH aide” and they share the aide’s response. This is what a responsible news organization does. Did you think the aide was going to confirm the story? LOL. Do you believe every leak put out by WH aides? LOL Once again, BN doesn’t publish the original story without SKB’s blessing. Did they retract the story? No, they did not. So you can believe SKB or you can believe the WH aide. Your choice.