Former first daughter Chelsea Clinton welcomed her third child with husband Marc Mezvinsky on Monday.
"This morning we welcomed out son, Jasper Clinton Mezvinsky," Clinton tweeted this morning. "We are overflowing with love and gratitude and can't wait to introduce him to his big sister and brother.
Chelsea Clinton's mother and former Secretary of State Hillary Clinton shared her excitement on Twitter.
Chelsea married investor Marc Mezvinsky in 2010 and already have two children: Charlotte, 4, and Aidan, 2.
Chelsea Clinton made the announcement about her pregnancy back in January.