Iran's Supreme Leader Ayatollah Ali Khamenei has demanded all sanctions on his country are lifted once a final agreement over a nuclear deal is signed.
President Obama says the sanctions would be removed in phases once the agreement is secured.
Speaking on State television, Khamenei said he would "neither support nor oppose the deal", which was reached last week between Iran and six world powers in Switzerland.
During a Thursday press briefing, State Department spokesperson Jeff Rathke was asked how damaging the leader's remarks could be for the end of June deadline...
IN: I'm not going...'
OUT: '...ahead of us'
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