Martinez v. Shinn

Whether the rule this Court established in Martinez v. Ryan, 566 U.S. 1 (2012), and Trevino v. Thaler, 569 U.S. 413 (2013), that the ineffective assistance of post-conviction counsel can provide cause to excuse the procedural default of a claim of ineffective assistance of trial counsel, applies to a claim of ineffective assistance of trial counsel that is not raised in a defendant’s first federal habeas petition because his first federal habeas counsel was also ineffective.