Why did Denise Chung, the head of criminal prosecutors in D.C., resign from her position?

Denise Chung resigned after being ordered to freeze EPA funds tied to grants from the Biden administration. She was instructed on Monday (a federal holiday) to issue a freeze order to a bank regarding environmental protection grants. According to Carol Leonnig's reporting, this order was problematic because the Department of Justice was attempting to use its criminal power without any factual basis or predicate for investigation. The action was unprecedented as asset freezes typically require evidence of criminal activity, which was not demonstrated in this case. This represents the first instance of the Trump Justice Department using its criminal authority without proper justification.