U.S. Ambassador to Saudi Arabia Joseph Westphal, right, stands with Secretary of State John Kerry as he arrives at Riyadh Air Base, on Thursday, March 5, 2015, in Riyadh, Saudi Arabia. Kerry planned to meet with Arab Gulf state allies in Riyadh Thursday before sitting down with the foreign ministers of France, Britain, and Germany in Paris on Saturday to share the state of the Iran nuclear negotiations. (AP Photo/Evan Vucci) (The Associated Press)
RIYADH, Saudi Arabia – U.S. Secretary of State John Kerry is in Saudi Arabia seeking to ease Gulf Arab concerns about an emerging nuclear deal with Iran as well as instability in Yemen and other nations.