A dispute about a discovery demand in the pending federal lawsuit challenging the constitutionality of California Proposition 8 may delay the trial in the case, which has been scheduled to begin in January. The attorneys for the Proposition 8 Official Proponents are asking U.S. District Judge Vaughn R. Walker to stay discovery while they ask the U.S. Court of Appeals for the 9th Circuit to reverse Walker's October 1 ruling that they have no First Amendment right to refuse to turn over internal communications from the Proposition 8 referendum campaign.