A hospital group in cash-strapped Illinois says the state might be able to set up a health insurance exchange at a lower cost by “leasing” the federal government’s technology, an option that could appeal to as many as 34 states where subsides could be jeopardized by an unfavorable U.S. Supreme Court decision.In a memo written for Gov. Bruce Rauner and state lawmakers and released to The Associated Press, the Illinois Hospital Association said it anticipates the federal government “will be developing a leasing fee” for …