Senator John McCain proposed tax credits for health insurance purchased in the individual market , which was estimated to reduce the number of uninsured people by about 2 million by 2018 .
Obama and his opponent , Sen. John McCain , proposed health insurance reforms though they differed greatly .
Sen. Sen.   proposed tax credits for health insurance purchased in the individual market , which was estimated to reduce the number of uninsured people by about 2 million by 2018 .
Obama and his opponent , Sen. John McCain , proposed health insurance reforms though they differed greatly .