The next year is going to be a momentous one for the Clinton family. Chelsea Clinton – daughter of Hillary and Bill Clinton – has announced she is expecting her second baby with husband Marc Mezvinsky.
"Next summer, Charlotte is going to be a big sister! Feeling very blessed & grateful this holiday season," 35-year-old Chelsea tweeted on Monday, along with a photo of her 15-month-old daughter reading a book named Big Sisters Are The Best.
Chelsea Clinton posted a sweet pregnancy announcement on Twitter
Among the first to congratulate the couple were Chelsea's parents. "Your dad and I could not be happier for you, Marc and Charlotte. We're so excited to meet our second grandchild!" Hillary wrote on Twitter.
Former president Bill added: "Christmas comes early! Hillary and I are thrilled for Chelsea, Marc and Charlotte's growing family in 2016!"
Hillary is currently busy seeking to be the Democratic Party's nominee for the White House next autumn. But both she and Bill still make time to be with their only grandchild Charlotte.
Chelsea and husband Marc Mezvinsky welcomed daughter Charlotte in September 2014
Speaking previously to People magazine, Chelsea said her parents are devoted babysitters. "Watching them do all of that with Charlotte is just a lot of fun… an unexpected joy in this process," she said.
"They are so interested in everything about her – getting to know her and being part of her life and part of her daily routine – so it's not just checking in once in a while, but checking in every day to see how she's doing."
Chelsea went on to joke about finding her own parenting style. "Er, she definitely gives me advice," the former First Daughter said of her mother back in March. "Some of it I take. And some of it I sort of smile and say 'Thank you' for. I'm sure this is a common thing with new mums with their mothers!"