Susie Wiles has left President Donald Trump's White House, but his longtime biographer believes she is just getting started against him.
On Tuesday's episode of "Inside Trump's Head," Trump biographer Michael Wolff told co-host Joanna Coles that the ousted White House chief of staff will look for any opening to "put the knife in" while keeping up a respectful face in public.
Coles raised Wiles' departure on the show, noting that she stormed off after Trump "berated her yet another time" over the GOP's midterm performance, and asked whether she would remain loyal.
"Well, you know, loyalty is understood in different kind of ways," Wolff replied. "Does she remain publicly loyal or at least publicly respectful? Yes. Does she do everything possible? In private to undermine him? Yes."
Coles called it "so unpleasant" and suggested Wiles would also try to undermine Stephen Miller, the Trump loyalist who replaced her as chief of staff.
Wolff said Wiles would be "most mindful of her own interests" and singled out her daughter, Katie Wiles.
"One of the interests, by the way, is her daughter and her daughter's future career," he explained, adding that "part of the tension within the White House is that she kept promoting...her own daughter."
The biographer described Wiles as "intently focused on her own reputation" and her "coterie of people," adding that it was often pointed out "she wasn't really that concerned about Donald Trump" or the things he said that caused discomfort inside the administration.
"She could live with that," Wolff said. "And that's probably why she lasted as long as she did."
Now that she's out, Wolff predicted that self-interest will guide her next move.
"She's an adept political player. She has her self-interest to protect here," he warned. "She will look for all...options in which to put the knife in."
Wolff also argued that Trump didn't choose Miller as part of any plan, but because he was the "most loyal, most available person" when Wiles walked out.
He described Miller as "unable and uninterested in compromise of any sort," making him "exactly the kind of person you don't want in the chief of staff role."