Speaker of the House Paul Ryan (R-WI) listen as U.S. President Barack Obama speaks during a meeting with the congressional leadership at the Oval Office of the White House, in Washington U.S., September 12, 2016. REUTERS/Carlos Barria

Actor George Clooney, human rights activist and co-founder of Sentry, speaks next to actor Don Cheadle, co-founder of Not on Our Watch, during a news conference on September 12, 2016, in Washington, DC, to present the report War Crimes Shouldnt Pay: Stopping the looting and destruction in South Sudan. South Sudan's devastating civil war has enriched senior officials directing the conflict, including the president and his main rival, the report charged. "Top officials ultimately responsible for mass atrocities in South Sudan have at the same time managed to accumulate fortunes, despite modest government salaries," said the report. / AFP PHOTO / MOLLY RILEYMOLLY RILEY/AFP/Getty Images

Actor George Clooney, human rights activist and co-founder of Sentry, speaks during a news conference on September 12, 2016, in Washington, DC, to present the report War Crimes Shouldnt Pay: Stopping the looting and destruction in South Sudan. South Sudan's devastating civil war has enriched senior officials directing the conflict, including the president and his main rival, the report charged. "Top officials ultimately responsible for mass atrocities in South Sudan have at the same time managed to accumulate fortunes, despite modest government salaries," said the report. / AFP PHOTO / MOLLY RILEYMOLLY RILEY/AFP/Getty Images

Actor George Clooney, human rights activist and co-founder of Sentry, speaks during a news conference on September 12, 2016, in Washington, DC, to present the report War Crimes Shouldnt Pay: Stopping the looting and destruction in South Sudan. South Sudan's devastating civil war has enriched senior officials directing the conflict, including the president and his main rival, the report charged. "Top officials ultimately responsible for mass atrocities in South Sudan have at the same time managed to accumulate fortunes, despite modest government salaries," said the report. / AFP PHOTO / MOLLY RILEYMOLLY RILEY/AFP/Getty Images

Actor George Clooney, human rights activist and co-founder of Sentry, speaks during a news conference on September 12, 2016, in Washington, DC, to present the report War Crimes Shouldnt Pay: Stopping the looting and destruction in South Sudan. South Sudan's devastating civil war has enriched senior officials directing the conflict, including the president and his main rival, the report charged. "Top officials ultimately responsible for mass atrocities in South Sudan have at the same time managed to accumulate fortunes, despite modest government salaries," said the report. / AFP PHOTO / MOLLY RILEYMOLLY RILEY/AFP/Getty Images

Actor George Clooney, human rights activist and co-founder of Sentry, speaks during a news conference on September 12, 2016, in Washington, DC, to present the report War Crimes Shouldnt Pay: Stopping the looting and destruction in South Sudan. South Sudan's devastating civil war has enriched senior officials directing the conflict, including the president and his main rival, the report charged. "Top officials ultimately responsible for mass atrocities in South Sudan have at the same time managed to accumulate fortunes, despite modest government salaries," said the report. / AFP PHOTO / MOLLY RILEYMOLLY RILEY/AFP/Getty Images

WASHINGTON, DC - SEPTEMBER 12: David Rubenstein (L), co-founder of the Carlyle Group and President of the Economic Club of Washington, presents a gift to Jamie Dimon, chairman and CEO of JPMorgan Chase & Co. at the club's luncheon September 12, 2016 in Washington, DC. Dimon joined Rubenstein in a discussion on the state of U.S., global and regional economies at the luncheon. (Photo by Win McNamee/Getty Images)

WASHINGTON, DC - SEPTEMBER 12: David Rubenstein, Co-founder of the Carlyle Group and President of the Economic Club of Washington, speaks at the club's luncheon September 12, 2016 in Washington, DC. Jamie Dimon, chairman and CEO of JPMorgan Chase & Co., joined Rubenstein in a discussion on the state of U.S., global and regional economies. (Photo by Win McNamee/Getty Images)