What is the test for a motion to overturn a criminal conviction obtained in an otherwise fair proceeding?

standing alone, would not justify a reviewing court to reverse a criminal conviction obtained in an otherwise fair proceeding." United States v. Young, 470 U.S. 1, 11-12 (1985). To warrant reversal, prosecutorial misconduct must cause the defendant such substantial prejudice as to deny the defendant due process. United States v. Carr, 424 F.3d 213, 227 (2d Cir. 2005). We review the district court's denial of a motion for mistrial for abuse of discretion. United States v. Smith, 426 F.3d 567, 571 (2d Cir. 2005).