Bill Clinton, Hillary share first cute photos of Chelsea's son Aidan

Hillary Clinton and her husband Bill Clinton hold their newborn grandson Aidan Clinton Mezvinsky in this new photo shared to Twitter on Sunday June 19.

''What a joy being with our new grandson, Aidan. So grateful,'' the 68-year-old presumptive Democratic presidential nominee captioned the picture.

''Aidan has made two dads very happy this Father’s Day. Hillary and I are thrilled for Marc and Chelsea!'' former US president captioned a photo on his account.

''At 7:41 AM Saturday, our family and hearts expanded with Aidan’s arrival. We are blessed,'' Chelsea Clinton, 36, captioned a photo of herself and husband Marc Mezvinsky with their son.

Chelsea gave birth to her second child on Saturday June 18 at Lennox Hospital in New York City.