Chelsea Clinton

In this Dec. 1996 file photo, Chelsea Clinton, right, sits with Marc Mezvinsky on the beach at Hilton Head Island, S.C. (AP Photo/Mary Ann Chastain, File)

FILE – In this March 23, 2015 file photo, Chelsea Clinton, vice chair of the Clinton Foundation, arrives at the launch of ServiceNation’s “Serve A Year” campaign in Los Angeles. Clinton has a deal with Penguin Young Readers for “It’s Your World: Get Informed, Get Inspired & Get Going!” the publisher announced Wednesday, May 20. The book aims to “inform and inspire” young people to “change the world” and will cover a range of issues from poverty to gender equality, according to Penguin. Publication is scheduled for September 15. (Photo by Chris Pizzello/Invision/AP, File)

-New York, NY -7/24/2014 – Chelsea Clinton Speaks to Kids and Families About Importance of Community Service at Disney Junior`s `Pirate and Princess Power of Doing Good` -PICTURED: Chelsea Clinton -PHOTO by: Bill Davila/startraksphoto.com -BDP_7730 Editorial – Rights Managed Image – Please contact http://www.startraksphoto.com for licensing fee Startraks Photo New York, NY For licensing please call 212-414-9464 or email sales@startraksphoto.com

NEW YORK, NY – NOVEMBER 10: Chelsea Clinton attends the Glamour 2014 Women Of The Year Awards at Carnegie Hall on November 10, 2014 in New York City. (Photo by Larry Busacca/Getty Images for Glamour)

NEW YORK, NY – SEPTEMBER 21: Chelsea Clinton speaks during the 8th Annual Clinton Global Citizen Awards at Sheraton Times Square on September 21, 2014 in New York City. (Photo by Jemal Countess/Getty Images)

LONDON – JULY 12: Bill Clinton (R) and his daughter Chelsea Clinton arrive to attend the launch party for “My Life”, the memoirs of the former US President Bill Clinton, on July 12, 2004 in London, England. (Photo by Scott Barbour/Getty Images)

Former U.S. President Bill Clinton and his daughter Chelsea sit during their visit to the Ramotsa Clinic in Hammanskraal, near Pretoria, August 7, 2013. The former president was visiting Clinton Foundation projects in Malawi, Zambia, Tanzania (including Zanzibar), Rwanda, and South Africa. REUTERS/Mujahid Safodien (SOUTH AFRICA – Tags: POLITICS HEALTH) – RTX12D3T