Chelsea Clinton: I'm Engaged!

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Chelsea Clinton has announced that she is engaged to longtime boyfriend Marc Mezvinsky.

According to ABC News, they sent an email to friends on Friday, Nov. 27.

It read: "We're sorry for the mass email but we wanted to wish everyone a belated Happy Thanksgiving! We also wanted to share that we are engaged! We didn't get married this past summer despite the stories to the contrary, but we are looking toward next summer and hope you all will be there to celebrate with us. Happy Holidays! Chelsea & Marc."

Clinton spokesman Matt McKenna told ABC News he believed the couple became engaged on Thanksgiving in New York.

Clinton, 29, and Mezvinsky -- the son of former Rep. Ed Mezvinsky, D-Iowa, and former Rep. Marjorie Margolies-Mezvinksy, D-Penn. -- have been close since their teens when their parents worked in D.C.

They got even closer when they both attended Stanford University.

Rumors surfaced earlier this year that the two were planning to wed in August.