NEW YORK (CBSNewYork) – 2016 is shaping up to be a big year for the Clintons.

Chelsea Clinton announced she’s pregnant Monday afternoon. The child is due in 2016.

“Next summer, Charlotte is going to be a big sister! Feeling very blessed & grateful this holiday season,” Clinton wrote on Twitter.

Clinton and husband Marc Mezvinsky had their first daughter in 2014.

Clinton’s mother Hillary Clinton is currently the front-runner among Democratic candidates hoping to win the presidency in 2016.