Can the working people of Illinois afford another millionaire in the U.S. Senate? It has been five years since banking heir Peter F. Fitzgerald spent more than $14.6 million of his personal fortune for the prestige and prominence of membership in the U.S. Senate. Since Fitzgerald announced that he is stepping down, five GOP millionaires have expressed an interest in his seat: Andrew McKenna Jr., Jack Ryan, former Lt. Gov. Corinne Wood, John Cox and James Oberweis. (The Democrats also have a millionaire candidate, Blair Hull.) Where do they come from? Fitzgerald, 42, is among the least effective legislators ever...