Sen. Lindsey Graham (R-S.C.), Sen. Mark Kelly (D-Ariz.) and Rep. Ro Khanna (D-Calif.) react to the U.S. and Israel launching military strikes on Iran, killing the country’s supreme leader, Ayatollah Ali Khamenei. Richard Engel reports from Beit Shemesh, Israel. Stephen Hayes, Jeh Johnson, Carol Lee and Jonathan Martin join the roundtable