In about one month, a key part of the Affordable Care Act kicks off nationwide. The health insurance marketplace opens for enrollment -- and consumers can shop for an insurance plan from what could be hundreds of options. And this week, a Missouri-wide campaign to raise awareness about the marketplace begins, it's led by the Missouri Foundation for Health. States had the option to run their own marketplaces or let the federal government do it for them. Missouri, along with 26 other states, chose the latter.