Whether due process entitles a defendant to exculpatory information pre-plea

QUESTIONS PRESENTED 1. RELEVANT ISSUES: Brady v. Maryland, 373 U.S. 83 (1963), enshrined the principle that the prosecution is obligated to provide a criminal defendant all material exculpatory evidence as a matter of due process. United States v. Ruiz, 536 U.S. 622 (2002), qualified that proposition, enunciating the rule that prosecutors are not required to furnish impeachment material to an accused entering a guilty plea. QUESTION 1: The central question in this case is whether due process entitles a defendant to exculpatory information pre-plea.