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Illinois Republican gubernatorial candidate Bruce Rauner speaks during an interview in Chicago on Sept. 18, 2014. | M. Spencer Green/AP

Why does a rich guy want to be governor?

That’s the question I hear most often about Bruce Rauner, the Republican multi-millionaire businessman running against Gov. Pat Quinn this November. I don’t recall the question being asked about former governors George Ryan, a Republican, or Rod Blagojevich, a Democrat, when they were candidates.

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