Tags: Iran

Saudi King Salman appointed a new heir and made his young son second in line to rule on Wednesday, a major shift in power toward two princes who have overseen a more assertive stance at a time of almost unprecedented regional turmoil.

The U.S. Senate rejected an effort on Tuesday to require any nuclear agreement with Iran to be considered an international treaty, which would have forced any deal to be ratified by two-thirds of the Senate's 100 members.

The United Nations envoy to Syria said on Friday he will begin meeting in May with the country's government, opposition groups, and regional powers including Iran to assess by the end of June whether there is any hope brokering an end to the war.