Texas Governor Rick Perry delivers remarks about immigration and the need for more aggressive enforcement along the Texas-Mexico border at the conservative think tank The Heritage Foundation August 21, 2014 in Washington, DC. The governor of Texas since 2000 and a one-time presidential candidate, Perry was recently indicted by a Travis County grand jury for abuse of power and coercion of a public servant after he vetoed $7.5 million in funding for the state's Public Integrity Unit, which is investigating Perry's Cancer Prevention and Research Institute of Texas.
Sen. Bernie Sanders (I-VT) answers questions during a press conference at the U.S. Capitol January 16, 2014 in Washington, DC. Sanders spoke on "Republican efforts to cut Social Security and Medicare and other programs of great importance to working families" during his remarks.
In this handout provided by the Smithsonian's National Zoo, one of two newborn Giant Pandas born August 22 is cared for by a member of the panda team at the Smithsonian's National Zoo and Conservation Biology Institute August 24, 2015 in Washington, DC.
US Vice President Joseph Biden (R) listens while President Barack Obama announces Ashton Carter as his nominee for Secretary of Defense in the Roosevelt Room of the White House December 5, 2014 in Washington, DC to replace Secretary of Defense Chuck Hagel. Secretary Hagel did not attend today's ceremony at the White House.
WASHINGTON, DC - JULY 08: Senator Elizabeth Warren (D-MA) attends the Planned Parenthood Generation Conference opening ceremony and welcome reception at the Marriott Wardman Park Hotel on July 8, 2015 in Washington, DC. (Photo by Jennifer Graylock/Getty Images) Jennifer Graylock via Getty Images
WASHINGTON, DC - APRIL 07: Oprah Winfrey speaks at the Maya Angelou Forever Stamp Dedicationat at the Warner Theatre on April 7, 2015 in Washington, DC. (Photo by Larry French/Getty Images) - Larry French/Getty Images
WASHINGTON, DC - FEBRUARY 03: US Senator Jeff Flake (R-AZ) speaks during a Senate Foreign Relations committee hearing on U.S. and Cuban relations in Washington, D.C. on February 3, 2015. (Photo by Samuel Corum/Anadolu Agency/Getty Images) Anadolu Agency via Getty Images
WASHINGTON, DC - JULY 29: House Speaker John Boehner holds his weekly news conference on Capitol Hill on July 29, 2015 in Washington, DC. During the press conference the Speaker listed the accomplishments of the Republican party that saved US tax payers trillions of dollars, but admitted much more needs to be done. (Photo by Astrid Riecken/Getty Images) Astrid Riecken via Getty Images
U.S. Senate Environment and Public Works Committee member Sen. Larry Craig (R-ID) (2nd R) and Sen. John Barrosso (R-WY) (R) question witnesses during a hearing about the possible listing of the polar bear under the Endangered Species Act April 2, 2008 in Washington, DC.