The Obamas released tax returns for both Barack and Michelle. The Clintons released returns for both Bill and Hillary. But while John McCain released his tax returns, Cindy McCain's tax documents remain private. It's not too hard to understand why. The McCains are extraordinarily wealthy -- one might be tempted to call them "elites" -- and Cindy McCain's assets are estimated at $100 million, including a private jet, which her husband has been borrowing at a reduced rate. Given the other candidates' disclosures, and McCain's own alleged commitment to transparency, will we ever see Cindy McCain's returns? She was asked on the "Today" show and said, politely, "Never."