In his resignation letter, Dunleavy criticized how the committee conducted its investigation into the Afghanistan withdrawal and the series of failures involved in the disaster. He describes the situation as "a diplomatic failure, an intelligence failure, a military failure, a strategic failure, a policy failure, a planning failure, a political failure, a truth-telling failure, and a moral failure" and stresses that each of these aspects needed thorough investigation.

The investigator explained that his efforts to look into key aspects of the withdrawal were “repeatedly stymied by our chief investigator and by senior staff,” which resulted in what he calls “investigative paralysis.”

Much of Dunleavy’s frustration stems from a reluctance to hold high-ranking officials accountable for their missteps – especially Vice President Kamala Harris, who he describes as a key decision-maker in the withdrawal. //

In his closing remarks, Dunleavy expressed concerns that the failures of the Afghanistan withdrawal have not been adequately addressed and fears these oversights will have serious consequences for future U.S. foreign policy.