That's Professor Dale Carpenter, a long-time supporter of same-sex "marriage."
From the AP:
"What Judge Walker's ruling means is you can sponsor a proposition, direct it, research it, work for it, raise $40 million for it, get it on a ballot, successfully campaign for it and then have no ability to defend it independently in court," said Dale Carpenter, a University of Minnesota constitutional law professor who supports same-sex marriage. "And then a judge maybe let you be the sole defender in a full-blown trial and then says, 'by the way, you never can defend this.' It just seems very unlikely to me the higher courts will buy that."