A significant dispute broke out today in court over whether Yes on 8 campaign manager Frank Shubert can be called to the witness stand by the legal team defending the constitutionality of California's same-sex marriage ban.

Plaintiffs, the legal team challenging Proposition 8, had sought, during deposition, to elicit testimony from Shubert--who was also instrumental in putting together both the Yes on 8 campaign and the campaign to repeal of Maine's marriage equality law. But during that deposition, defense attorneys repeatedly instructed Shubert not to respond.