If California soon becomes the first state to let undocumented immigrants use the health insurance marketplace, will others follow?
Many government policies have no evidence of success before or after they're implemented. A new competition seeks to change that.
Federal law bans states from regulating air ambulance companies, leaving patients with exorbitant out-of-pocket medical bills.
One state's rejection of Medicaid expansion can hurt health-care systems in another state, according to a new study.