From Financial Times:
Washington is desperate to stop Israel carrying out an attack before November – an event that would drag the US into war and also destabilise President Barack Obama’s chances of re-election. “As a result, Jalili could come to the talks retaining his maximalist bargaining position that Iran will give away nothing unless sanctions are reversed,” said a diplomat.The Iranians are counting on the West, not just Obama, to view Iranian nukes as a better option than a military action to stop them.
