Illinois’ race for governor in 2018 could be the most expensive in U.S. history, according to a recent analysis by one good-government group. The Illinois Campaign for Political Reform noted this week that candidates for the office have already raised $81 million with 19 months until Election Day. As of now, the most expensive gubernatorial races in U.S. history are the 2010 race in California between Meg Whitman and Jerry Brown ($280 million spent); the 2002 race in New York between Tom Golisano and George Patacki ( …