Peter Orszag, former director of the Office of Management and Budget under President George W. Bush, leaves the Senate after a closed door meeting with lawmakers and other economists, at the Capitol in Washington, Wednesday, Sept. 25, 2013. He is currently chairman of the Financial Strategy and Solutions Group at Citigroup. (AP Photo/J. Scott Applewhite) Peter Orszag in the Capitol in  2013. He is chairman of the Financial Strategy and Solutions Group at Citigroup. (J. Scott Applewhite/AP)

As Peter Orszag sits this week in the  D.C. courtroom where his ex-wife is suing him over child support, with lawyers laying bare the details of their nannies’ schedules and children’s physical therapy appointments, the geeky former Cabinet member is continuing his unlikely career as one of Washington’s most prolific air-ers of dirty laundry.

Orszag, a smartypants economist who headed the Office of Management and Budget and is now an executive with Citigroup, surely knows the two scripts that most Washington bigwigs follow: either have no personal secrets to spill, or keep them to yourself, please.

But as the court case, in which Cameron Kennedy, his first wife, is seeking to up child-support payments for their two middle-school-aged kids, stretches into its second week, Orszag’s private life is yet again anything but.  And so we’re learning all the details of the former couple’s domestic lives, from the hours a week they have child-care help to the kids’ carpool arrangements.

The trial began in March, and picked up again Tuesday, when the judge urged both “mom and dad” to keep their sometimes-meandering answers tight so that the proceedings have a chance of wrapping up this week.

It’s not, though, the first time the former couple has tussled in open court. Kennedy filed a breach of contract suit against Orszag in 2008, claiming he hadn’t paid her under the terms of their 2006 divorce deal. Orszag reportedly paid, and the suit was dismissed.

Then there’s his complicated — and well-documented — romantic life. In 2009, as the youngest Cabinet-level appointee in the Obama administration, Orszag announced that he’d fathered a child with his ex-girlfriend, N.Y.C.-based venture capitalist Claire Milonas. Which was some awkward timing, since he’d gotten engaged to ABC correspondent Bianna Golodryga just a few weeks earlier.

It wasn’t clear that Orzag and Milonas had broken up when he met the gorgeous journo at the White House Correspondents Dinner (a friend of his told the Reliable Source at the time that the two had split by then, but a pal of hers said they hadn’t). The improbable drama led comedian Jon Stewart at the time to quip that “O.M.B. stands for Office of Managing the Booty.”

These days, Orszag splits time between a home in Washington and a condo in New York.

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