Trump Iran framework gambles on diplomacy despite warning Tehran will 'lie and cheat'

The Trump administration's new framework with Iran grants Tehran immediate oil sanctions waivers while postponing the most consequential nuclear questions for future negotiations, a gamble officials acknowledge carries risks because they expect Iran may not comply. 

"We come in with the full expectation that they will lie and they will cheat," one senior U.S. official said on a call with reporters Wednesday, arguing that any final agreement would require a verification and enforcement mechanism capable of detecting violations.