Former Massey Energy Company Chairman and CEO Don Blankenship, seen in July 2010, has pleaded not guilty to conspiracy charges associated with the 2010 West Virginia mine explosion that killed 29 men. Jacquelyn Martin/AP hide caption

itoggle caption Jacquelyn Martin/AP

In this courtroom sketch, Boston Marathon bombing suspect Dzhokhar Tsarnaev is depicted sitting in federal court for a pretrial hearing in Boston on Dec. 18. Tsarnaev is charged with the April 2013 bombing that killed three people and injured more than 260. He could face the death penalty if convicted. Jane Flavell Collins/AP hide caption

itoggle caption Jane Flavell Collins/AP

Joel Ramirez climbs back into his wheelchair with the help of Francisco Guardado, a home health aide, at his home in Rialto, Calif. Ramirez was paralyzed from the waist down in 2009 when a 900-pound crate fell on him at a warehouse. Changes to California workers' compensation laws have impacted his quality of care. Patrick T. Fallon for ProPublica hide caption

itoggle caption Patrick T. Fallon for ProPublica

Fans and foes of Obamacare jockeyed for position outside the Supreme Court Wednesday. Inside, the justices weighed arguments in the case of King v. Burwell, which challenges a key part of the federal health law. Pete Marovich/UPI/Landov hide caption

itoggle caption Pete Marovich/UPI/Landov