A protest group hoping to camp out at a large Denver park during the Democratic National Convention has called a news conference to announce its "nonnegotiable" plans. Tent State University and other groups were given a permit for Denver's 314-acre City Park, but city officials have told them they're not allowed to camp overnight. The park has an 11 p.m. curfew. Denver City Councilwoman Carla Madison says the permit for the groups is at the southwest corner of the park from Sunday through Thursday the week of the convention. She says the group initially expected about 20,000 people each day but now estimate it will be up to 10,000. Tent State plans to announce its plans later Wednesday.