In a statement from The White House (via The Daily ... it would appear that Ivanka appreciates Audrey Hepburn and wanted to pay homage to her by wearing a dress that looks exactly like the coolest ...

Audrey Hepburn accepted her Best Actress statue (for Roman Holiday) wearing a white A-line belted dress by Hubert de Givenchy, featuring floral embroidery and Hepburn's signature boat-neck.