Senate to Vote on U.S.A. Freedom Act in Washington, D.C.

Sen. Rand Paul, R-KY, walk to the U.S. Capitol Building for a Senate vote on the U.S.A. Freedom Act during a rare Sunday session on Capitol Hill in Washington, D.C. on May 31, 2015. Three intelligence tools are set to expire later today with the Patriot Act, including the NSA's bulk collection of Americans' phone records. Lawmakers are debating the House's U.S.A Freedom Act which will renew certain intelligence tools. Photo by Kevin Dietsch/UPI.