U.S Senators Bob Corker, center, and Chris Coons, right, speak with a South Sudanese refugee during a group discussion br>at the Bidi Bidi refugee settlement in northern Uganda, April 14, 2017.br>GANYIEL, SOUTH SUDAN —andnbsp;A top U.S. politician visiting South Sudan says he will urge colleagues to maintain assistance to the country despite severe cuts in foreign aid" />