She refused a Trump administration demand to freeze environmental grant assets.

WASHINGTON (AP) — A top supervisor in the federal prosecutors’ office in Washington said she was forced to resign following a dispute with her boss over a directive that she scrutinize the awarding of a government contract during the Biden administration, according to a letter reviewed by The Associated Press.

A D.C. prosecutor resigned after refusing to investigate a federal agency’s actions under Biden, citing insufficient evidence.

A top prosecutor in DC’s US attorney’s office resigned Tuesday after refusing to help launch an investigation into a Biden administration environmental contract. Denise Cheung quit after being asked to issue grand jury subpoenas to determine whether “a contract had been unlawfully awarded,