US Secretary of State Marco Rubio said on Monday (May 25) Washington will give diplomacy "every chance to succeed" in their ongoing negotiations with Iran. Speaking to reporters in India's New Delhi before boarding a flight to Agra for a visit to the Taj Mahal, Rubio said talks with Iran remain a “work in progress,” expressing cautious optimism about a potential agreement to reopen key shipping routes and resume nuclear negotiations. The two sides remain at odds on several difficult issues,