U.S. President Barack Obama speaks from the Rose Garden of the White House to announce his three nominees to fill vacancies on the United States Court of Appeals for the District of Columbia in Washington June 4, 2013. The nominees will be attorney Patricia Ann Millett (R), Georgetown law professor Cornelia Pillard (behind Obama) and U.S. District Court Judge Robert Leon Wilkins (L). REUTERS/Kevin Lamarque/File Photo

Richard Cordray, Director of Consumer Financial Protection Bureau, participates in an open meeting of the President's Advisory Council on Financial Capability for Young Americans at the Treasury Department in Washington, October 2, 2014. REUTERS/Yuri Gripas

(FILES) This file photo taken on June 1, 2016 shows World Bank president Jim Yong Kim as he speaks during a conversation entitled Preventing The Next Pandemic at the Center for International and Strategic Studies (CSIS) in Washington,DC. The United States on August 25, 2016 threw its support behind World Bank chief Jim Yong Kim for a second term at the helm of the multilateral development lender."I am proud to announce that today the United States has nominated World Bank President Jim Kim for a second term," said US Treasury Secretary Jacob Lew in a statement. / AFP PHOTO / NICHOLAS KAMMNICHOLAS KAMM/AFP/Getty Images

U.S. President Barack Obama walks on the South Lawn of the White House upon his return to Washington, U.S. after visiting flood damage area in Baton Rouge, Louisiana, August 23, 2016. REUTERS/Yuri Gripas

This handout picture taken and released on August 24, 2016 by the Turkey's President Press Service shows US Vice President Joe Biden (L) and Turkish President Recep Tayyip Erdogan (R) speaking at the Turkish Presidential Complex in Ankara during a press conference. US Vice President Joe Biden on August 24, 2016 said Washington had made clear that pro-Kurdish forces in Syria must not to cross west of the Euphrates River, a prospect alarming for Turkey. His comments come after Turkish troops launched an operation inside Syria to cleanse the key town of Jarabulus from Islamic State (IS) jihadists. / AFP PHOTO / TURKEY'S PRESIDENTIAL PRESS SERVICE / KAYHAN OZER / RESTRICTED TO EDITORIAL USE - MANDATORY CREDIT "AFP PHOTO / TURKEY'S PRESIDENTIAL PRESS SERVICE/ KAYHAN OZER- NO MARKETING NO ADVERTISING CAMPAIGNS - DISTRIBUTED AS A SERVICE TO CLIENTS TURKEY, Ankara : KAYHAN OZER/AFP/Getty Images

This handout picture taken and released on August 24, 2016 by the Turkey's President Press Service shows US Vice President Joe Biden (L) and Turkish President Recep Tayyip Erdogan (R) speaking during a press conference at the Turkish Presidential Complex in Ankara. US Vice President Joe Biden on August 24, 2016 said Washington had made clear that pro-Kurdish forces in Syria must not to cross west of the Euphrates River, a prospect alarming for Turkey. His comments come after Turkish troops launched an operation inside Syria to cleanse the key town of Jarabulus from Islamic State (IS) jihadists. / AFP PHOTO / TURKEY'S PRESIDENTIAL PRESS SERVICE / KAYHAN OZER / RESTRICTED TO EDITORIAL USE - MANDATORY CREDIT "AFP PHOTO / TURKEY'S PRESIDENTIAL PRESS SERVICE/ KAYHAN OZER- NO MARKETING NO ADVERTISING CAMPAIGNS - DISTRIBUTED AS A SERVICE TO CLIENTS TURKEY, Ankara : KAYHAN OZER/AFP/Getty Images

This handout picture taken and released on August 24, 2016 by the Turkey's President Press Service shows US Vice President Joe Biden (L) and Turkish President Recep Tayyip Erdogan (R) speaking during a press conference at the Turkish Presidential Complex in Ankara. US Vice President Joe Biden on August 24, 2016 said Washington had made clear that pro-Kurdish forces in Syria must not to cross west of the Euphrates River, a prospect alarming for Turkey. His comments come after Turkish troops launched an operation inside Syria to cleanse the key town of Jarabulus from Islamic State (IS) jihadists. / AFP PHOTO / TURKEY'S PRESIDENTIAL PRESS SERVICE / KAYHAN OZER / RESTRICTED TO EDITORIAL USE - MANDATORY CREDIT "AFP PHOTO / TURKEY'S PRESIDENTIAL PRESS SERVICE/ KAYHAN OZER- NO MARKETING NO ADVERTISING CAMPAIGNS - DISTRIBUTED AS A SERVICE TO CLIENTS TURKEY, Ankara : KAYHAN OZER/AFP/Getty Images

This handout picture taken and released on August 24, 2016 by the Turkey's President Press Service shows US Vice President Joe Biden (L) listening Turkish President Recep Tayyip Erdogan (R) during a press conference at the Turkish Presidential Complex in Ankara. US Vice President Joe Biden on August 24, 2016 said Washington had made clear that pro-Kurdish forces in Syria must not to cross west of the Euphrates River, a prospect alarming for Turkey. His comments come after Turkish troops launched an operation inside Syria to cleanse the key town of Jarabulus from Islamic State (IS) jihadists. / AFP PHOTO / TURKEY'S PRESIDENTIAL PRESS SERVICE / KAYHAN OZER / RESTRICTED TO EDITORIAL USE - MANDATORY CREDIT "AFP PHOTO / TURKEY'S PRESIDENTIAL PRESS SERVICE/ KAYHAN OZER- NO MARKETING NO ADVERTISING CAMPAIGNS - DISTRIBUTED AS A SERVICE TO CLIENTS TURKEY, Ankara : KAYHAN OZER/AFP/Getty Images