Whether an unobjected-to violation of Federal Rule of Criminal Procedure 11 is reviewed under Rule 52(b)'s plain-error standard or under Rule 11(h)'s harmless-error standard, with the burden on the Government.
Holding
Rule 52(b)'s plain-error standard applies. A defendant who did not object to a Rule 11 error must show that the error was plain and affected substantial rights, and must satisfy the further requirements for discretionary plain-error relief.
Reasoning
Rule 11(h) provides that a Rule 11 variance not affecting substantial rights must be disregarded, language resembling Rule 52(a)'s harmless-error rule. But Rule 52 also includes Rule 52(b), which governs errors not timely raised in the trial court. Reading Rule 11(h) to displace Rule 52(b) would effectively create an implied partial repeal of the general plain-error rule, a conclusion unsupported by the text or context.
The history of Rule 11(h) confirms that its purpose was narrow: to reject the automatic-reversal practice that some courts had derived from McCarthy v. United States. The Advisory Committee added a harmless-error provision because some courts thought Rule 52(a) could not apply to Rule 11 proceedings. Nothing in the Rule's history indicates an intent to eliminate plain-error review for defendants who failed to object.
McCarthy did not decide the harmless-error versus plain-error question. It did not discuss Rule 52, and its refusal to remand for new evidence rested on Rule 11's goal of avoiding later litigation over whether a plea was knowing and voluntary. In any event, the record in McCarthy strongly indicated prejudice, so the defendant likely would have met plain-error standards had they been at issue.
Applying ordinary forfeiture principles also promotes Rule 11's practical purposes. A defendant and defense counsel should alert the court to a correctable omission when it occurs, rather than remain silent, await sentencing, and preserve an appellate claim if the sentence proves unsatisfactory. Requiring a contemporaneous objection encourages prompt correction and protects the finality of guilty pleas.