Saudi Arabia’s ambassador to the United States, Prince Turki al-Faisal, has resigned after only 15 months on the job, the embassy said on Tuesday, fueling speculation he may succeed his ailing brother as foreign minister. “The embassy can confirm that he is leaving. He wants to spend more time with his family,” said an embassy official, who asked not to be named as the announcement had not yet been made formally by the Saudi government. Full Story