NPR looks at the ongoing debate surrounding the expansion of Medicaid. Twenty-four states and the District of Columbia said yes to the expansion when the ACA went into effect. Since then, just six more have signed on. States that say yes get billions of additional federal dollars, but many Republican lawmakers are loathe to say yes to the Obama administration. NPR looks specifically at states like Montana, Wyoming, Utah and Alaska. For example, Montana's approach is now on its way to the federal government, which will have the last word on whether it's legal under the ACA. In Alaska, Gov. Bill Walker, a former Republican who is now independent, has made Medicaid expansion a top priority.