Bill and Hillary Clinton Announce Arrival of New Grandchild: Chelsea Gives Birth to Baby #3!

Chelsea Clinton is now a mother of three!

The daughter of former President Bill Clinton announced on Twitter the arrival of his third grandchild, a baby boy on twitter the morning, writing, "This morning we welcomed our son, Jasper Clinton Mezvinsky. We are overflowing with love and gratitude and can’t wait to introduce him to his big sister and brother."

Little Jasper joins big sister Charlotte, 4, and brother Aidan, 3.

Chelsea announced her pregnancy in January, sharing how excited the couple was to expand their family this summer.

“Marc and I have loved watching Charlotte be such a wonderful big sister and we’re excited to watch Aidan become a big brother!” she wrote on Twitter. “We cannot wait to meet our newest addition later this summer.”

She then responded to a fan, saying that her parents, Bill and Hillary Clinton, were excited to become grandparents to another baby.

Chelsea spoke to ET in 2016 about how her mom had influenced her parenting.

“My daughter, I find myself giving her ridiculous praise for doing things like putting the top back on the cereal container. I'm like, 'Oh Charlotte, that was so good. Thank you for putting the top back on,'” she said. “And she beams at me and I'm like, 'Oh my gosh, I'm just like my mother.'"

Grandma Hillary also took to Twitter to share the news about the family addition, writing, "Sharing some happy news this morning! Bill and I are so thrilled."

It's been a big year for daughters of our former presidents.

Jenna Bush Hager, the daughter of former President George W. Bush announced in April that she is pregnant with her third child.

Earlier in April, Eric and Lara Trump, the second-oldest son and daughter-in-law of President Trump, announced they are expecting their second child in August.