Iranian Parliament Speaker Mohammad Bagher Ghalibaf has publicly denounced US Treasury Secretary Janet Yellen as a “big liar” via social media. The criticism stems from recent statements made by Yellen regarding the US economy. Ghalibaf highlighted increasing bond yields and escalating costs associated with ongoing wars as evidence contradicting Yellen’s claims. This rebuke underscores the continuing tensions between Tehran and Washington. The Speaker’s direct attack signals Iran's dissatisfaction with US economic policies and statements. This exchange further complicates diplomatic efforts between the two nations. It reflects a strong anti-US sentiment within a segment of the Iranian political establishment.