Asked whether he would release any of the interview tapes, Woodward told “CBS This Morning” on Thursday: “Well, if somebody really wants to challenge me, of course. Of course. But I — again, I’ve made agreements with people that these sources are going to remain confidential.”…

“I spent over a year on this. I have literally hundreds of hours of tapes with people who were there. If you’ve looked at the book, they’re very specific incidents. And it is a kind of — it opens the window,” Woodward said.

Various Trump administration officials have come forward to deny certain accounts in the story, including White House Chief of Staff John Kelly and Defense Secretary James Mattis. Woodward addressed the various push-back he’s getting.