WASHINGTON, DC - SEPTEMBER 15: U.S. President Barack Obama delivers remarks at the Our Oceans conference at the State Department's Harry S. Truman building September 15, 2016 in Washington, DC. According to the State Department, the conference will bring scientists, political leaders and advocates together to focus on 'key ocean issues of our time Ð marine protected areas, sustainable fisheries, marine pollution, and climate-related impacts on the ocean.' (Photo by Chip Somodevilla/Getty Images)

WASHINGTON, DC - SEPTEMBER 15: U.S. President Barack Obama delivers remarks at the Our Oceans conference at the State Department's Harry S. Truman building September 15, 2016 in Washington, DC. According to the State Department, the conference will bring scientists, political leaders and advocates together to focus on 'key ocean issues of our time Ð marine protected areas, sustainable fisheries, marine pollution, and climate-related impacts on the ocean.' (Photo by Chip Somodevilla/Getty Images)

(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. World Bank President Jim Yong Kim effectively won a second five-year term after nominations to lead the global development bank closed Wednesday with no other candidates proposed. The World Bank executive board said in a statement that, following official procedures, it would formally meet with Kim as a candidate "with the expectation of completing the selection process by the 2016 Annual Meetings," which take place on October 7-9. / AFP PHOTO / NICHOLAS KAMMNICHOLAS KAMM/AFP/Getty Images

Former U.S. Secretary of State Colin Powell (R) takes part in an onstage interview with Aspen Institute President and CEO Walter Isaacson (L) at the Washington Ideas Forum in Washington, September 30, 2015. REUTERS/Jonathan Ernst/File Photo

WASHINGTON, DC - SEPTEMBER 14: (L-R) (front row), Vice President Joe Biden, House Minority Leader Nancy Pelosi (D-CA), House Speaker Paul Ryan (R-WI), (back row), Rep.Tulsi Gabbard (D-HI), and Sen. Mazie Hirono (D-HI), attend a memorial service to honor the late Rep. Mark Takai (D-HI), 49, who died from pancreatic cancer last July, at the US Capitol September 14, 2016 in Washington, DC. (Photo by Mark Wilson/Getty Images)

WASHINGTON, DC - SEPTEMBER 14: Sneakers with the hand-painted images of President Barack Obama by artist Van Taylor Monroe are on display at the Smithsonian's National Museum of African American History and Culture during the press preview on the National Mall September 14, 2016 in Washington, DC. Filled with exhibits and artifacts telling the story of the first Africans in the United States and their descendents, the 400,000-square-foot museum will open to the public on September 24. (Photo by Chip Somodevilla/Getty Images)

WASHINGTON, DC - SEPTEMBER 14: Vice President Joe Biden speaks during a memorial service to honor the late Rep. Mark Takai (D-HI), 49, who died from pancreatic cancer last July, at the US Capitol September 14, 2016 in Washington, DC. (Photo by Mark Wilson/Getty Images)

WASHINGTON, DC - SEPTEMBER 14: Vice President Joe Biden speaks during a memorial service to honor the late Rep. Mark Takai (D-HI), 49, who died from pancreatic cancer last July, at the US Capitol September 14, 2016 in Washington, DC. (Photo by Mark Wilson/Getty Images)