Chelsea Clinton Gives Birth to 2nd Child Her son Aiden joins 20-month-old daughter Charlotte By Newser Editors and Wire Services Posted Jun 18, 2016 12:49 PM CDT 70 comments Comments Chelsea Clinton, seen here during a campaign event for her mother last months, announced the birth of her second child Saturday. (Amy Newman/The Record of Bergen County via AP) (Newser) – Presidential hopeful Hillary Clinton is a grandmother twice over, the AP reports. Chelsea Clinton announced Saturday that she has given birth to her second child, son Aidan. The 36-year-old daughter of former President Bill Clinton and current presumptive Democratic presidential nominee Hillary Clinton and her hedge fund manager husband Marc Mezvinsky have a 20-month-old daughter, Charlotte. Both Charlotte and Aidan were born at Manhattan's Lenox Hill Hospital. On Twitter, Chelsea Clinton said the couple is "overwhelmed with gratitude and love." Aidan is the second baby to be born to the child of a presidential candidate this year. In March, presumptive Republican nominee Donald Trump's daughter Ivanka gave birth to her third child, son Theodore James.