Which of the following details about Chelsea Clinton and Marc Mezvinsky is INCOR

Former first daughter Chelsea Clinton and her long-time boyfriend, Marc Mezvinsky, an investment banker, are engaged. The couple sent Friday—sent out an e-mail on Friday announcing their news. And they wrote, "We’re sorry for the mass e-mail, 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 forward to next summer and hope you’ll be there to celebrate with us. Happy holidays, Chelsea and Marc." Those rumors of a wedding this past summer speak to the fact that this is not just any young couple. Ms. Clinton wasn’t yet a teenager when she moved into the White House. She’s now 29 years old and pursuing a second graduate degree.