Whether a defendant can establish Strickland prejudice when deficient legal advice causes rejection of a favorable plea offer, followed by a fair trial and a harsher sentence.
Holding
Yes. A fair trial does not eliminate prejudice from ineffective assistance during plea bargaining when the defendant lost a favorable plea opportunity and received a more severe conviction or sentence.
Reasoning
The Sixth Amendment right to effective assistance applies at critical stages of a criminal case, including plea negotiations. Its function is not confined to ensuring that the eventual trial itself is fair; counsel is also required when defendants make consequential decisions before trial, such as whether to accept a plea offer.
For a rejected-plea claim, the defendant must show a reasonable probability that, absent counsel's deficient advice, he would have accepted the offer; the prosecution would not have withdrawn it; the trial court would have accepted its terms; and the conviction, sentence, or both under the plea would have been less severe than the actual judgment after trial.
The Court rejected the argument that a constitutionally fair trial automatically cures an earlier plea-bargaining error. Here, trial was not a cure for the error: it was the event that produced the injury, because Cooper lost a substantially lower sentencing outcome that competent advice likely would have secured.
Lockhart v. Fretwell did not alter Strickland's ordinary reasonable-probability test in this setting. Fretwell prevents a defendant from claiming prejudice based on a legal windfall to which he was never entitled. Cooper, by contrast, claimed the loss of a legitimate plea offer that the prosecution itself had made and that he likely would have accepted with competent advice.
The Court also emphasized the practical setting of modern criminal justice. Because the overwhelming majority of convictions result from guilty pleas, effective assistance cannot be meaningfully protected if courts treat a fair trial as a blanket cure for counsel's deficient performance during plea bargaining.