California, United States of America
The following excerpt is from People v. Delallo, H043603 (Cal. App. 2020):
To establish ineffective assistance of counsel, Delallo must show that counsel's performance was deficient and that he was prejudiced by the deficiency. (People v. Ledesma (1987) 43 Cal.3d 171, 216-217.) To prove prejudice, Delallo bears the burden to show a reasonable probability that, but for his trial counsel's errors, the result would have been different. (Id. at pp. 217-218.) A reasonable probability is one " 'sufficient to undermine confidence in the outcome.' " (Id. at p. 218.)
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