Chelsea Clinton expecting her second child

Chelsea Clinton is pregnant with her second child, she announced Monday afternoon on Twitter.

{mosads}”Next summer, Charlotte is going to be a big sister! Feeling very blessed & grateful this holiday season,” Clinton tweeted with a photo of her daughter Charlotte.

The baby will be Democratic presidential front-runner Hillary Clinton’s second grandchild.

Charlotte was born in September 2014 to Chelsea and husband, Marc Mezvinkski. She is the couple’s first child.

“Your dad and I could not be happier for you, Marc, and Charlotte,” Hillary tweeted shortly after the announcement. “We’re so excited to meet our second grandchild! -H” 

“Christmas comes early,” former President Bill Clinton added on Twitter.

Next summer, Charlotte is going to be a big sister! Feeling very blessed & grateful this holiday season. pic.twitter.com/gpCGqcmeCq

— Chelsea Clinton (@ChelseaClinton) December 21, 2015

Your dad and I could not be happier for you, Marc, and Charlotte. We’re so excited to meet our second grandchild! -H https://t.co/hgTr07HBlr

— Hillary Clinton (@HillaryClinton) December 21, 2015

Christmas comes early! @HillaryClinton and I are thrilled for Chelsea, Marc and Charlotte’s growing family in 2016! https://t.co/D1zCrrzXa2

— Bill Clinton (@billclinton) December 21, 2015

This story was updated at 4:07 p.m.