America’s war with Iran is collapsing when President Donald Trump sends Dr. Eric Ortiz—a decorated veteran, physician, and crisis manager—to uncover why. Eric discovers an enemy surviving beneath Iran’s mountains, a Pentagon trapped by its own assumptions, and a government more concerned with controlling the story than winning the war. His investigation pulls him from auditor to combatant and ultimately makes him Grand Marshal of a defeated nation.

As Eric struggles to dismantle the IRGC and rebuild Iran, enriched nuclear material disappears into clandestine networks stretching across continents. Radiological attacks reach American soil, Gulf leaders begin trusting Eric more than Trump, and the President turns against the man succeeding where his administration failed. *POTUS48: The Grand Marshal* is a geopolitical thriller about war, intelligence, faith, corruption, and the dangerous cost of telling the truth when powerful men need the lie.