Federal judges have almost no ability under the law to refuse a government request to drop criminal charges. The corruption case against Mayor Eric Adams of New York may be the exception.On Thursday, Manhattan’s top federal prosecutor, Danielle R. Sassoon, resigned rather than obey an order to seek dismissal of the charges against the mayor. The directive was issued by Emil Bove III, the acting No. 2 official in President Trump’s Justice Department and his former criminal lawyer.Mr. Bove wrote that the demand had nothing to do with the strength of the evidence against the mayor or legal theories in...