In this powerful resignation letter, veteran federal prosecutor Denise Cheung details her decision to step down after refusing a directive from the Trump administration to freeze assets and initiate a criminal investigation into an environmental grant program without sufficient legal basis. Cheung describes the intense internal deliberations, her collaboration with the FBI, and her ultimate conclusion that the evidence did not meet the legal threshold required for the action she was being ordered to take. When she declined to issue a letter she believed would misrepresent the facts and violate legal standards, she was asked to resign. Her letter stands as a principled defense of prosecutorial independence, ethical responsibility, and the rule of law.