WASHINGTON D.C. – The future of U.S.-Iran relations, and indeed global stability, appears to be hanging precariously on President Donald J. Trump's current emotional state, following reports he was 'not thrilled' with Iran after the latest nuclear program discussions. Analysts are now scrambling to develop predictive models based on the President's daily temperament.

'It's a delicate balance,' explained Dr. Penelope Fidget, Head of Affective Geopolitics at the Institute for Mood-Based Policy Studies. 'A 'not thrilled' rating is concerning, but not yet in the 'actively displeased' or 'considering strongly worded tweet followed by tactical air strike' territory. We're advising caution, perhaps a nice cup of chamomile tea for the Commander-in-Chief.'

White House aides, speaking anonymously while polishing a large, gold-plated 'Mood Indicator' dial, confirmed the shift in strategic planning. 'Gone are the days of tedious intelligence briefings and multilateral consensus,' one aide whispered. 'Now, we just need to know if the President woke up on the right side of the bed, or if his breakfast bacon was sufficiently crispy. A perfectly cooked rasher can avert a crisis.'

Concerns are mounting among career diplomats, who are reportedly being retrained in advanced psychological profiling and the subtle art of 'reading the room,' rather than international law. 'My entire career was built on treaties and protocols,' lamented Ambassador Reginald Pumble, a 30-year veteran of the State Department. 'Now, I'm just trying to figure out if a certain hand gesture means 'let's negotiate' or 'prepare for mutually assured destruction.' It's exhausting.'