the affordable care act, also known as obama care, kicks in on tuesday. as we found out, a lot of people don't know anything about it. that has health insurance workers going door to door to spread the word. our sain asher went with them. >> we will start at the top of the hill. >> reporter: with a few days to go before the new health insurance exchanges go live, an army of obama care experts are going door to door. >> good morning. is christopher home? >> we're not selling anything. >> do you have insurance? >> reporter: trying to explain obama care to americans that don't have health insurance. >> i don't know if it has something to do with caring for people, obama care, basically that's all i know. >> reporter: according to kaiser family foundation, 43% of uninsured americans still have no idea about the new exchanges. >> i have a question.