A Sacred Oath: Memoirs of a Secretary of Defense During Extraordinary Times – An Instant New York Times Bestseller: A Pentagon Insider's Tumultuous Years Under President Trump

by Mark T. Esper

The individual motivations for the leaks ranged from advancing a preferred policy outcome to enhancing the leaker’s own role or credentials to currying favor with the president. It was a noxious behavior learned from the top. The president was the biggest leaker of all.