soviet show trial
"Held: The Ninth Circuit panel’s drastic departure from the principle of
party presentation constituted an abuse of discretion.
The Nation’s adversarial adjudication system follows the principle
of party presentation. Greenlaw v. United States, 554 U. S. 237, 243.
“In both civil and criminal cases, . . . we rely on the parties to frame
the issues for decision and assign to courts the role of neutral arbiter
of matters the parties present.” Id., at 243"