Biden hails result and urges Congress to pass a bill permitting abortion on a federal level; referendum draws high turnout, similar to that for a general election

Yael Ilinsky says she posted pictures of herself doing so in order to expose problems with voting procedures

Amid war of words and escalating tensions between Tehran and Washington, vote could provide political cover for uranium enrichment

National Election Authority head says referendum on amending 2014 constitution approved by 88.83%; critics warn move will cement authoritarian rule