Ronan Farrow appeared on Seth Meyers’ show Tuesday night to talk about his new book “War on Peace.”

“Tillerson, if he had any logic, knew that he was going to be fired on some level,” Farrow told the host. “Maybe that’s why he’s so frank in this book. He basically says ‘I didn’t know what I was doing, I wasn’t experienced enough for it.’”

Tillerson, the former CEO of ExxonMobil, was fired as the secretary earlier this year.

In the book, Farrow interviewed every living secretary of state.