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


"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 ClintonHillary Diane Rodham ClintonTrump complains of 'fake polls' after surveys show him trailing multiple Democratic candidates Hillary Clinton responds to Trump tweets telling Dem lawmakers to 'go back' to their countries The Young Turks' Cenk Uygur: Here's how to choose a president MORE'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.

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