President Donald Trump has considered himself an effective dealmaker above all else, but he appears to have hit a wall with Iran as his tough talk, threats and even military action have not moved Tehran from its long-established positions.
With shifting goals that make it difficult to judge the status of the U.S. effort, Trump and his top aides have insisted the United States has already won the war and that Iran is ready to reach an agreement in the wake of escalating U.S. threats during a tenuous ceasefire.
