Ivanka Trump poses at the Metropolitan Museum of Art Costume Institute Gala, The Model As Muse: Embodying Fashion in New York, May 4, 2009. REUTERS/Lucas Jackson

Ivanka Trump, daughter of real estate mogul Donald Trump last night got engaged to New York Observer's publisher, Jared Kushner.

Trump twittered this morning, I got engaged last night...truly the happiest day of my life!!!

Kushner, 28, is the son of real estate developer billionaire Charles Kushner and is Jewish. Trump said she would convert to Judaism for her fiancé.