Chelsea Clinton announces she's expecting second child with husband Marc Mezvinsky

Chelsea Clinton has announced she’s expecting her second child with husband Marc Mezvinsky. The couple already have a 1-year-old daughter, Charlotte.

Clinton, 35, took to Twitter to announce the exciting baby news on Monday, posting a photo of Charlotte reading a book called I’m A Big Sister.

“Next summer, Charlotte is going to be a big sister!” she tweeted. “Feeling very blessed & grateful this holiday season.”

She followed up the tweet by sending thanks for all of the well wishes since her announcement. “Thank you for all the warm wishes! Marc, Charlotte & I are so excited about our growing family,” she wrote.

Clinton and Mezvinsky's second child will be the second grandchild of hopeful presidential candidate Hillary Clinton and former president Bill Clinton.

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