US Secretary of State added that "the alternative is growing isolation, economic collapse and ultimately, total defeat" WASHINGTON, May 6. /TASS/. US officials, including President’s Special Envoy Steve Witkoff and the US president’s son-in-law Jared Kushner, are working intensively to find a diplomatic solution to resolve the conflict with Iran, US Secretary of State and Assistant to the President for National Security Affairs Marco Rubio said at a White House briefing. "Iran must accept the