A funny thing happened in the courtroom of U.S. District Court Judge Maryellen Noreika last week. Hunter Biden’s lawyers and the Department of Justice tried to pull a fast one on her, but she refused to play her designated part, declining to “rubber stamp” an intentionally opaque plea agreement. Plea agreements are generally straightforward. The terms are, with perhaps minor modifications, standard and set forth the complete agreement between the government and the defendant: What rights the defendant will waive, the charges to which he will plead guilty, any charges that the government will forgo in return for the defendant’s...