The indictment of Eric Adams, unsealed Thursday by federal prosecutors, describes a dispiriting and profound violation of the trust New York voters once placed in the mayor to lead the nation’s largest city. This is the first time a sitting mayor of New York City has been indicted. The charges against Mr. Adams are serious, including allegations that he misappropriated more than $10 million in public funds for his 2021 campaign. The mayor will have his day in court and is entitled to...