Category: Government — Trump Administration (Former)
Role: National Security Advisor (2017–2018)
Priority: P2

Basis for Inclusion Subject classification: Former Public Official (non-elected) Role: National Security Advisor (February 2017 – April 2018); retired Lt. General, US Army This profile documents McMaster’s tenure as National Security Advisor and his documented public break with the administration. Note: McMaster resigned after policy clashes with Trump and subsequently published work critical of Trump’s approach to democratic institutions. This profile is retained as historical context for Trump-era NSC resistance and accountability documentation of the administration period — not as an accountability finding against McMaster personally. Individual accountability conduct in the NSA role has not been independently documented. Sources need to be added.

Summary

Lt. General H.R. McMaster served as Trump’s National Security Advisor from February 2017 to April 2018, replacing Michael Flynn. He clashed repeatedly with Trump over policy and was replaced by John Bolton. After leaving, McMaster became publicly critical of Trump, particularly regarding foreign policy and democratic norms, and published “Battlegrounds” (2020) warning about threats to democracy.

Accountability Context

Accountability Status

Current status: Retired from government; fellow at Hoover Institution; author and commentator
Legal exposure: None

Source Verification Status

⚠️ Sources needed: The original source citation for this profile has been removed as it did not meet our primary-source verification standard. The factual background above reflects publicly known information about this individual’s career and public roles. Any negative characterizations about this person’s individual conduct require independent verification before they can be treated as established fact. To contribute verified sources: Contact factcheck@patriot.university with citations to primary sources (court records, congressional records, official filings, or major news reports with named sources). Network-level context: Many individuals in this knowledge base are included because they are part of documented information networks relevant to Patriot University’s civic education mission. Inclusion does not imply individual criminal conduct unless specifically documented with primary-source citations.

Investigative trail pointers (public records)

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Sources

Last Updated: May 11, 2026