Iowa hospital executives want the state to accept hundreds of millions of dollars in extra federal Medicaid money under the national health reform program. Gov. Terry Branstad plans to decline the money, which would expand Medicaid to cover about 150,000 poor Iowa adults. Branstad is skeptical that the federal government can afford to keep its promise to pay at least 90 percent of the cost. The Iowa Hospital Association board recently voted unanimously to support expansion of Medicaid. Association members plan to aggressively lobby legislators on the subject. The group said turning down the federal money could cripple hospitals.