Can a judge conduct voir dire in a trial?

In light of certain proposed voir dire questions submitted by one of the parties in this case, the judge may decide to conduct all voir dire. "[A] trial court [does not] abuse[] its discretion in conducting voir dire where there is sufficient questioning to produce, in light of the factual situation involved in the particular trial, some basis for a reasonably knowledgeable exercise of the right of challenge." United States v. McAnderson, 914 F.2d 934, 943 (7th Cir. 1990) (quoting United States v. Hasting, 739 F.2d 1269, 1273 (7th Cir. 1984)).