The Obama administration filled in a key detail of what states must do to receive full federal funding for an expansion of Medicaid under the 2010 health law. Health and Human Services Secretary Kathleen Sebelius said in a letter sent Monday to governors that states cannot partially expand their Medicaid programs and get full federal funding. In a blog post, Sebelius also outlined other points of the guidance being provided to states, and gave a conditional nod to exchange plans submitted by Colorado, Connecticut, Massachusetts, Maryland, Oregon and Washington. Click on the embedded links to read more.