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Opinion of the Court

However, not all errors on counsel's part justify setting aside the judgment; rather, they must prejudice the defendant's ability to receive a fair trial. In certain circumstances, such as when the defendant has had no counsel at all or when counsel has labored under a conflict of interest, the Court will presume prejudice, but ordinarily, the defendant must show that counsel's deficient performance had an adverse effect on the defense. Since the goal is to ensure that the defendant had a fair trial, the defendant must show that there is a reasonable probability that, but for counsel's errors, the result of the proceeding would have been different.