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Chelsea Clinton Is Expecting Her Second Child

Charlotte is going to be a big sister.

Chelsea Clinton just made a major announcement on Twitter, and it has nothing to do with politics -- she is currently expecting her second child!

The daughter of presidential candidate Hillary Clinton and former President Bill Clinton, Chelsea, 35, has a one-year-old daughter with husband Marc Mezvinsky, whom she wed in 2010. Clinton took to Twitter to announce the exciting news.

"Next summer, Charlotte is going to be a big sister!" she captioned an adorable pic of her daughter (who's apparently already reading -- those are some very strong presidential genes). "Feeling very blessed and grateful this holiday season."

Aww. Congrats to the whole fam!