Hillary and Bill Clinton took to Twitter today to show their joy and celebrate the birth of their granddaughter, Charlotte Clinton Mezvinsky.
Hillary Clinton tweeted a photo this afternoon showing her holding her new granddaughter.
The new grandmother sits next to her husband, former President Bill Clinton.
"@BillClinton and I are over the moon to be grandparents! One of the happiest moments of our life," the tweet read.
Charlotte Clinton Mezvinksy was born early Saturday morning, Chelsea Clinton announced on Twitter.
Former President Bill Clinton also tweeted a photo of him playing with the new baby.
The photo shows the Clintons sitting side by side, cuddling with Charlotte.
"Charlotte, your grandmother @HillaryClinton and I couldn't be happier!" he wrote.