The Search for the Next Secretary of the Army

The pursuit for a new Secretary of the Army has commenced following the resignation of Dan Driscoll. His departure creates a significant leadership vacancy in the U.S. Army, the largest branch of the nation’s military.

Driscoll’s announcement marks Wednesday as his last full day in service, declaring it an honor to serve under President Trump and Defense Secretary Pete Hegseth.

Challenges Faced by the Incoming Secretary

The successor to Driscoll will face numerous challenges. The Army is undergoing major changes, particularly concerning its readiness and role in ongoing conflicts, notably with Iran.

“Amazon for War” plans to reshape military operations by reducing helicopter use as drone combat gains prominence.

On March 22, 2026, Driscoll and Army Sergeant Major Michael R. Weimer honored Army ROTC cadets from Old Dominion University with Meritorious Service Medals and Purple Hearts, acknowledging their bravery during a classroom shooting.

Possible Candidates and Leadership Transitions

Mike Obadal, the Army Undersecretary, may serve as acting secretary while Driscoll’s resignation is processed. Obadal’s background includes special operations and roles in the defense industry.

Throughout Trump’s administration, deputy officials frequently assumed leadership roles after resignations, as seen with Navy Under Secretary Hung Cao stepping into the acting Navy secretary role post-John Phelan’s departure.

Sean Parnell, the Pentagon’s chief spokesman and senior adviser to Hegseth, is considered a potential candidate. Parnell is accompanied by experience as a U.S. Army captain and involvement in political campaigns.

Support and Criticism

Parnell is supported by many within the Office of the Secretary of War, valued for his understanding of Pentagon dynamics and longstanding ties with both Trump and senior White House officials.

His relationship with Trump is noted, especially during a rally in Butler, Pennsylvania, where Parnell stayed to assist after an assassination attempt on Trump.

Another potential candidate is Florida Rep. Brian Mast, known for his service in the Army and leadership in the House Committee on Foreign Affairs. Mast holds Trump’s endorsement.

Controversy and Internal Disagreement

Driscoll’s departure follows reported conflicts with Hegseth about the Army’s transformation and readiness. Parnell defends Hegseth’s leadership, praising his vision for the Department of War. Some lawmakers express concern, accusing Hegseth of prioritizing personal allegiance over competence.

Amid the shakeup, similar tensions led to Navy Secretary John Phelan’s removal after disputes on management and shipbuilding.

Fox News Digital inquired with relevant officials for comments, while the White House directed inquiries to the Department of War. Ashley J. DiMella reports on political matters for Fox News Digital.