WASHINGTON — Bill and Hillary Clinton are grandparents. The couple’s daughter, Chelsea Clinton, has given birth to her first child, a daughter named Charlotte.

Chelsea Clinton, the daughter of the former president and ex-secretary of state, announced the baby’s birth on Twitter and Facebook early Saturday, saying she and husband Marc Mezvinsky are “full of love, awe and gratitude as we celebrate the birth of our daughter, Charlotte Clinton Mezvinsky.”

Clinton spokesman Kamyl Bazbaz said the child was born on Friday but did not immediately provide additional details. The couple lives in New York City. The Clintons quickly retweeted their daughter’s message on Twitter but did not immediately comment on the baby’s arrival.

The baby arrives as Hillary Clinton deliberates on whether to seek the White House in 2016, a decision that could put her on a path to becoming the nation’s first female president. Clinton is the leading Democratic contender to succeed President Barack Obama, her former 2008 campaign rival, and has said she expects to make a decision around the beginning of next year.

The baby has been eagerly anticipated as Hillary Clinton considers her political future — she has called the prospect of becoming a grandmother her “most exciting title yet.” She even has picked out the first book she intends to read to her grandchild, the classic “Goodnight Moon.”