one of the happiest moments of our life. and charlotte, your grandmother @hillary clinton and i couldn't be happier. the power couple also saying chelsea is well and glowing and marc is bursting with pride. charlotte's life is off to a good start. and new details on the birth. chelsea delivering in new york city at lenox hill hospital. a go-to for high-profile mamas like beyonce. some wonder how being a grandma will change hillary clinton, if that's what the baby will call her. >> have you offered any names to chelsea? >> i want this to develop organically. i've talked to a lot of my friends who have preceded me into grandparenthood. some said i knew exactly what i wanted to be called and had a