$1-1.$ Binding versus Persuasive Authority. A county court in Illinois is deciding a case involving an issue that has never been addressed before in that state's courts. The lowa Supreme Court, however, recently decided a case involving a very similar fact pattern. Is the Illinois court obligated to follow the lowa Supreme Court's decision on the issue? If the United States Supreme Court had decided a similar case, would that decision be binding on the Illinois court? Explain. $($See Common Law Tradition.$)$