What constitutes misconduct under state law?

^4. While we conclude the prosecutor committed misconduct under state law, we reject the contention the error was federal in nature. The prosecutor's misconduct was limited to a single question and cannot be said to constitute a pattern of conduct designed to deny defendant a fair trial. (See People v. Hill (1998) 17 Cal.4th 800, 819 [" ' "A prosecutor's . . . intemperate behavior violates the federal Constitution when it comprises a pattern of conduct 'so egregious that it infects the trial with such unfairness as to make the conviction a denial of due process.' " ' "].)