(CNN) - Former Veterans Affairs Secretary David Shulkin says in a new book that he was shocked by an apparent culture of backstabbing in Washington and specifically his own department -- and that veterans are paying the price, The Washington Post reported Friday.
But "the environment in Washington had grown so toxic, chaotic and subversive that it became impossible for me to accomplish the important work that our veterans need and deserve."
President Donald Trump became upset with Shulkin over the growing scandals, ultimately nominating Ronny Jackson, the former physician to the president, to fill the role.
While Shulkin's account does not offer many glimpses into Trump's thinking, he does recount an interaction with the president and his son-in-law and adviser Jared Kushner, the Post reported.
Shulkin alleges that his own staff members, using ethics concerns over the Europe trip for their benefit, were behind his ouster, the Post reported.