Iran has officially threatened to increase its uranium enrichment levels to 90% if attacked again, according to Ibrahim Rezaei, spokesperson for the National Security and Foreign Policy Committee of the Iranian Parliament. This potential escalation is set to be reviewed by the Iranian Parliament. The issue of uranium enrichment remains a significant hurdle in U.S.-Iran negotiations, with Iran asserting its right to enrichment as non-negotiable. The United States has previously called for Iran to either remove its highly enriched uranium or suspend enrichment activities for 20 years. Meanwhile, prediction market Polymarket indicates a 7% probability that Iran will agree to halt uranium enrichment by the end of May, rising to 28% by the end of June, and 54% by the end of the year.