Chelsea Clinton and her husband Marc Mezvinsky are expecting their second child.

Chelsea Clinton Pregnant

Clinton, 35, announced her pregnancy on Twitter Monday. “Next summer, Charlotte is going to be a big sister!” she tweeted, referring to her and Mezvinsky’s 1-year-old daughter. “Feeling very blessed & grateful this holiday season.”

Soon after Chelsea confirmed the baby news, her parents – former President Bill Clinton and 2016 presidential hopeful Hillary Clinton – tweeted about how happy they are to soon be welcoming a second grandchild. “Your dad and I could not be happier for you, Marc, and Charlotte,” wrote the former Secretary of State. “We’re so excited to meet our second grandchild! -H.”

As for the 42nd POTUS, he wrote, “Christmas comes early! @HillaryClinton and I are thrilled for Chelsea, Marc and Charlotte’s growing family in 2016!”

The former first daughter and Mezvinsky, who were wed in 2010, welcomed Charlotte on Sept. 26, 2014. “Marc and I are full of love, awe and gratitude as we celebrate the birth of our daughter, Charlotte Clinton Mezvinsky,” the first-time mother said at the time, following the tweet up with a picture of herself with her husband and Charlotte.

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