Veteran diplomats Helga Schmid and Hans-Dieter Lucas, key negotiators of the 2015 Iran nuclear deal, have expressed concern over the current stalled talks between Iran and the United States. Both Schmid and Lucas participated directly in the original agreement and bring extensive experience to the assessment of the present situation. They describe Iranian negotiators as highly educated, well-informed, and uncompromisingly firm in their positions. Their observations suggest a challenging path forward for renewed negotiations. The lack of progress raises concerns about the future of the agreement and regional stability. Experts believe understanding the Iranian negotiating style is crucial for any potential breakthrough.