White House officials on Sunday denied Iranian state media reports that the US has reached an agreement with Iran to lift economic sanctions against the country, saying that there is still much to be negotiated over the coming weeks. US and Iranian officials held talks in Vienna last month aimed at bringing the United States back to the 2015 nuclear deal and Iran back into compliance with it. "There is no deal now," national security adviser Jake Sullivan said Sunday on ABC News' "This Week," adding that "there's still fair distance to travel to close the remaining gaps." "Those gaps...