The head of the criminal division in the U.S. attorney’s office in Washington, D.C., Denise Cheung, resigned on Tuesday after Trump appointees requested an investigation into an Environmental Protection Agency funding decision during the Biden administration.

The top criminal prosecutor at the U.S. Attorney’s Office for the District of Columbia, Denise Cheung, resigned on Tuesday, following a reported directive to launch an investigation into Environmental Protection Agency (EPA) funding approved under the Biden administration.

The criminal division chief refused to use DOJ power to compel the bank, citing lack of evidence of a crime after Trump appointees sought an investigation.