What are the elements of a ineffective assistance claim?

There are two elements to an ineffective assistance claim: (1) deficient performance, and (2) prejudice resulting from such deficient performance. (People v. Weaver (2001) 26 Cal.4th 876, 961.) "In considering a claim of ineffective assistance of counsel, it is not necessary to determine ' "whether counsel's performance was deficient before examining the prejudice suffered by the defendant as a result of the alleged deficiencies . . . . If it is easier to dispose of an ineffectiveness claim on the ground of lack of sufficient prejudice, which we expect will often be so, that course should be

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