Most of the frequently named hopefuls were there. Mr. Warner, Mr. Huckabee and Govs. Mitt Romney of Massachusetts, George Pataki of New York, Bill Richardson of New Mexico, Ed Rendell of Pennsylvania, Haley Barbour of Mississippi and host Gov. Tom Vilsack of Iowa. But there were also several other interesting governors here, including some female governors: Jennifer Granholm of Michigan, Kathleen Sebelius of Kansas and Ruth Ann Minner of Delaware. And then there was Gov. Brian Schweitzer of Montana.