What is the burden of proving a jury's failure to give the challenged instruction in a criminal case?

whether there is a reasonable likelihood that the jury applied the challenged instruction in a way that violates the constitution and that the category of infractions that violate "fundamental fairness" is very narrowly drawn. Id. at 72-73. "Beyond the specific guarantees enumerated in the Bill of Rights, the Due Process clause has limited operation." Id. at 73 (citation omitted). Where the defect is the failure to give an instruction, the burden is even heavier because an omitted or incomplete instruction is less likely to be prejudicial than an instruction that misstates the law. See Henderson v. Kibbe, 431 U.S. 145, 155 (1977). In those cases, the inquiry is whether the trial court's refusal to give the requested instruction "so infected the entire trial that the resulting conviction violates due process." Id. at 156-57; Estelle, 502 U.S. at 72.

A. Relevance of Age