Oct. 15 - Jake Sullivan, Sen. Lindsey Graham, Rep. Hakeem Jeffries

National Security Advisor Jake Sullivan.Sen. Lindsey Graham (R-S.C.), Rep. Hakeem Jeffries (D-N.Y.) House Minority Leader.NBC News Chief Foreign Correspondent Richard Engel from Israel. ROUNDTABLEHallie Jackson NBC News Senior Washington Correspondent, Andrea Mitchell NBC News Chief Washington Correspondent & Chief Foreign Affairs Correspondent, Toluse Olorunnipa White House Bureau Chief, The Washington Post, Amb. Dennis Ross Counselor, The Washington Institute for Near East Policy; Former Special Envoy to the Middle East; NBC News Foreign Affairs Analyst.