The trial took place in January, but Judge Walker has not yet scheduled closing arguments. In the meantime, the defendants and their allies are calling the legitimacy of the proceedings into question.

"The plaintiffs put on a spectacular show-trial of irrelevant evidence," Andrew P. Pugno, the general counsel of Protectmarriage.com, the leading sponsor of Proposition 8, said in a blog post.

Theodore B. Olson, who was solicitor general for President George W. Bush and now represents the plaintiffs challenging the ban, said he had a theory about the new objections.

"They've got to complain about something," Mr. Olson said. "They think they're going to lose."