Israel’s prime minister turned down a regional peace initiative last year that was brokered by then-U.S. Secretary of State John Kerry, former American officials confirmed Sunday, in apparent contradiction to Benjamin Netanyahu’s stated goal of involving regional Arab powers in resolving Israel’s conflict with the Palestinians. Netanyahu took part in a secret summit that Kerry organized in the southern Jordanian port city of Aqaba last February and included Jordan’s King Abdullah II and Egyptian President Abdel Fattah el-Sissi.