Cities: Chicago appears to be following Detroit's lead to financial disaster, perhaps the latest victim of decades of one-party rule by Democrats eager to redistribute wealth while driving real wealth creators out of cities. Moody's Investors Service downgraded the Windy City's credit rating by three notches last week, partly the result of $19 billion in unfunded pension debt, leaving Chicago's lower than 90% of Moody's public finance ratings. Among the nation's five largest cities, Chicago has put aside the smallest portion of its looming pension obligations, according to a study issued this year by the Pew Charitable Trusts. The condition...