European allies fear an inexperienced ?U.S. negotiating team is pushing for a swift, headline-grabbing framework deal with Iran that could entrench rather than resolve deeper problems, diplomats with past experience dealing with Tehran said.

They worry Washington, eager to claim a diplomatic win for President Donald Trump, could lock in a superficial agreement on Iran¡¯s nuclear program and sanctions relief, then struggle through months or years of technically complex follow-on talks.

¡°The concern isn¡¯t that there won¡¯t be an agreement,¡± said a senior European diplomat, one of eight interviewed?who have previously worked on the nuclear file or continue to do so. ¡°It¡¯s that there will be a bad initial agreement that creates endless downstream ?problems.¡±