Critics argue that Kerry's administration also failed to prevent Iran from advancing its nuclear program, suggesting a more nuanced view on responsibility for the conflict.

The risk lies in the potential for further deterioration of US-Iran relations if diplomatic efforts are seen as ineffective or biased.

Kerry may have an interest in portraying his administration's policies favorably and criticizing those of Trump to bolster his legacy.

Future US administrations will face similar challenges in balancing diplomatic engagement with firm national security policies towards Iran.

The debate over Trump's handling of Iran will likely continue, influencing public perception and shaping future foreign policy decisions.