As Iran and world powers reach a historic deal over its nuclear program, how will the agreement work and what happens next?
Is the deal finally fixed?
Not quite … it has to win approval in Congress where it is expected to face strong opposition — particularly from Republicans.
Congress has 60 days to pick over the terms, giving opponents plenty of time to challenge the Obama administration.
The White House is already facing intense opposition from Israel, which is lobbying hard.
Related: Israel condemns agreement as ‘bad mistake’
It will also need the endorsement of Iran’s supreme leader, Ayatollah Ali Khamenei, who may face opposition from hardliners.
It will then have to be ratified by United Nations Security Council.
Will sanctions be lifted immediately?
It is unlikely significant sanctions will be lifted before 2016, giving U.N. experts enough time to clear Iran of remaining suspicions about the scope of its nuclear program.








