Low-income adults formerly had few options for free health care. Leah Sessor had her blood pressure taken on April 14, 2012, during a free clinic at a racetrack in Bristol, Tenn. Mario Tama/Getty Images hide caption

itoggle caption Mario Tama/Getty Images

Wisconsin Gov. Scott Walker speaks at the Conservative Political Action Conference in March. Pete Marovich/Getty Images hide caption

itoggle caption Pete Marovich/Getty Images

Kyle Thompson and his family are all going to have health coverage in Oregon, thanks to the state's successful effort to enroll people in Medicaid. Kristian Foden-Vencil hide caption

itoggle caption Kristian Foden-Vencil

Click right this way for Medicaid. Connect for Health hide caption

itoggle caption Connect for Health

Bill Clinton says President Obama should figure out a way to honor his promise that people who like their insurance can keep it. OZY via Facebook hide caption

itoggle caption OZY via Facebook

Footprints mark the spot where immigrants stand while taking eye tests at the Salud Family Health Clinic in Ft. Collins, Colo. The nonprofit provides health care to immigrants seeking asylum and migrant farm workers. John Moore/Getty Images hide caption

itoggle caption John Moore/Getty Images

Pennsylvania Gov. Tom Corbett speaks at St. Christopher's Hospital for Children in Philadelphia on Wednesday. Corbett visited the hospital to promote his Healthy Pennsylvania initiative. Matt Rourke/AP hide caption

itoggle caption Matt Rourke/AP

Susan Mull is a substitute teacher in Lancaster County, Pa. She's lived with HIV for 21 years, the past 13 without health insurance. She says an expansion of Medicaid in Pennsylvania would be "life-changing." Jeff Brady/NPR hide caption

itoggle caption Jeff Brady/NPR

Katie Doderer, with dad Mark, big sister Emily, and mom Marcy, has a rare medical condition that requires 24-hour use of a ventilator. courtesy of the Doderer family hide caption

itoggle caption courtesy of the Doderer family

Dorothy Holmes, back home with her new dog, Jack. Martha Bebinger/WBUR hide caption

itoggle caption Martha Bebinger/WBUR