"The Iran nuclear talks will spill beyond a Tuesday deadline," writes The Washington Post , "as Iran’s foreign minister broke off from the negotiations and flew to Tehran for consultations."
"A potential agreement to rein in Iran’s nuclear program in exchange for sanctions relief remains elusive in this final round of talks, the culmination of more than 19 months of intense negotiations. Major differences still divide the two sides: Iran on the one hand and six world powers, including the United States, on the other. The key unresolved issues concern the pace at which sanctions would be lifted and how much access Iran would grant international inspectors who would monitor its compliance."
Associated Press : "Both sides recognize that there is leeway to extend to July 9. As part of an agreement with the U.S. Congress, lawmakers then have 30 days to review the deal before suspending congressional sanctions. But postponement beyond that would double the congressional review period to 60 days, giving both Iranian and U.S. critics more time to work on undermining an agreement."