Does a judge have a duty to conduct voir dire where counsel asks the jury to agree or reject any additional questions?

Although the discretion accorded a trial judge in conducting voir dire is extremely broad, "he must exercise a sound judicial discretion in the acceptance or rejection of supplemental questions proposed by counsel," especially in those instances in which the judge decides to conduct the voir dire. Baldwin, 607 F.2d at 1297. For example, we have rejected an appeal where the trial court refused to question the jury regarding general attitudes about the theory of the defense. See e.g. Jones, 722 F.2d at 530 (coercion defense); compare United States v. Goland, 959 F.2d 1449, 1454 (9th Cir.1992) (questions about campaign participation and familiarity with election laws adequately tested juror bias in trial for violations of Federal Election Campaign Act).