Bill, Hilary's daughter is pregnant again

The daughter and only child of Bill and Hilary Clinton has announced she's expecting baby number two!

Chelsea Clinton, who's already of mother to daughter, Charlotte took to her Twitter on December 21 to reveal the big news!

READ MORE: See Photos Of Bill And Hillary Clinton’s First Grandchild

The 35-year-old shared a photo of her one-year-old baby girl reading a book titled 'Big Sisters are the Best', and revealed that she's due in the summer.

2016 US Presidential candidate, Hilary Clinton was quick to congratulate her daughter and son-in-law Marc Mezvinsky, telling them how happy she and Bill are.