st. mary's that john f. kennedy and wife, jackie, tied the knot. where yachts and sailboats now crowd the docks, in the 1700's major seaport for sailing ships from around the world. one of the signers of the declaration of independence hailed from newport, william ellery. during the american revolution, the british occupied the town for three years. after the british left newport, it became the base for french troops sent to aid the colonies. under general rochambeau, 5,000 french soldiers marched to join general washington at yorktown. this painting shows the british surrender that ended the revolution. the americans are on the right, and the french on the left. in the early 1800's, southern plantation owners came north to newport to build grand summer homes. not to be outdone, wealthy yankees began to build even bigger homes. that set off a race between the richest families in america to try and out-build one another. they hired the most famous architects of the day and had them design palatial estates. this was the gilded age, the time of the titans who industrialized america. with almost limitless resourc

st. john's community health clinic in the heart of south los angeles. the people who come to this government-supported health center are some of l.a.'soorest and sickest residents, and most are uninsured. they turn to this place because if they can't pay, they'll still be seen and treated. do you have insurance? >> no, i don't have any insurance. >> reporter: you don't have insurance? >> no. >> reporter: when's the last time you had it? >> two years ago, when i lost my job. >> i don't have insurance. >> reporter: you don't have insurance. what's that like? >> just trying to not get sick. >> reporter: if the affordable care act, better known as obamacare, works, it's the patients at st. john's clinic, and millions more like them across the country, who are among those who are supposed to benefit the most. jim mangia is the president and ceo of st. john's. he says obamacare's importance can't be underestimated. >> there's no doubt in my mind that it's one of the most significant pieces of social legislation we've seen in more than a generation. >> reporter: if all goes according to plan, obamacare will expand health care coverage to ov