Obama‘s budget guru has secret love child with the heiress he dumped before hooking up with new ABC News fiancée!

White House Budget Director Peter Orszag‘s ex, Claire Milonas, gave birth to daughter Tatiana Zoe in New York on Nov. 17, sources told the NY Post.

Shockingly, the new baby was born a mere six weeks before Orszag and ABC financial correspondent Bianna Golodryga announced their engagement December 28 on TV and media.

Shipping heiress Orszag, 41, and Milonas, 39, had been a couple for months when she became pregnant last spring.

"Claire told Peter she was pregnant, and he said he’d marry her — and then something went wrong," a source old The NY Post.

"He made it clear that he wasn’t going to marry her, but that he’d help take care of the baby."

Orzag became smitten new love, ABC News doll Golodryga  after being seated next to her at White House correspondents dinner. 

The divorced Orzszag, then began squiring new love Golodryga to highly visible social and political events while  former GF Milonas was in the throes of labor.