Baldwin said her lawyer attended last week's arguments and believes it went well.
"I think we were struck by how, frankly, it's the same old arguments they've been using all along that have been so unsuccessful," said Baldwin, who intended to travel with Bishop, Barton and Phillips to Denver on Wednesday. "They make it sound as though there are a limited number of marriage licenses and if they start handing out marriage licenses willy-nilly to same-sex couples who can't have a child, then what is that going to do to procreation? Well, it's not going to do anything to procreation. People who still want to have children will still have children."