Whether the sufficiency of a factual basis for a defendant's plea should be subject to plain error review, or whether, under Sullivan v. Louisiana, 508 U.S. 275 (1993), such a case lacks 'an object' upon which review for harmless and plain error may operate?

QUESTIONS PRESENTED I. Whether the sufficiency of a factual basis for a defendant’s plea should be subject to plain error review, or whether, under Sullivan v. Louisiana, 508 U.S. 275 (1993), such a case lacks “an object” upon which review for harmless and plain error may operate? il PARTIES Kirk Patrick Keshler is the petitioner; he was the defendant-appellant below. The United States of America is the respondent; it was the plaintiff-appellee below. ili