Senate Finance Committee Chairman Sen. Max Baucus, D-Mont., (center) and House Ways and Means Committee Chairman Rep. Dave Camp, R-Mich., (right) speak about overhauling the tax code at the 3M Innovation Center in Maplewood, Minn., on July 8. Hannah Foslien/AP hide caption

itoggle caption Hannah Foslien/AP

A kidney donor is wheeled to an operating room for a transplant at Johns Hopkins Hospital in Baltimore in late June. Brendan Smialowski/AFP/Getty Images hide caption

itoggle caption Brendan Smialowski/AFP/Getty Images