The following excerpt is from Shapiro v. United States, No. 18-2902 (2nd Cir. 2020):
Defendants bringing ineffective assistance of counsel claims must demonstrate, first, that "in light of all the circumstances," counsel's actions or inactions "'were outside the wide range of professionally competent assistance,' and second, that 'there is a reasonable probability that, but for counsel's unprofessional errors, the result of the proceeding would have been different'" - in other words, that the defendant was prejudiced by the unprofessional conduct. United States v. Nolan, 956 F.3d 71, 79 (2d Cir. 2020) (quoting Strickland v. Washington, 466 U.S. 668, 690, 694 (1984)).
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