Chelsea Clinton expecting 2nd child

Chelsea Clinton announced via Twitter that she is having another child. "Next summer, Charlotte is going to be a big sister! Feeling very blessed & grateful this holiday season," she tweeted with a photo of her daughter, Charlotte, who was born in September 2014. Clinton, daughter for Bill and Hillary Clinton, is married to Marc Mezvinsky.

Hillary Clinton, who is running for president, tweeted: "Your dad and I could not be happier for you, Marc, and Charlotte. We’re so excited to meet our second grandchild!"