I guess it depends on how many carriers we’re good with losing...
1) No money was given to Iran. Iranian money was returned to them rather than continue the theft.
2) US declares sanctions on Iranian oil, as if there was any authority to do that. Mostly this involved obstruction of payment for it, but no and then Iranian oil is seized on the high seas. Iran could have arranged non state actors to hit directly at US cities over this, and did not.
3) Trump tried to withdraw troops from Syria and Iraq, and Bolton obstructed this, placing himself between the Commander in Chief and the military. We have no national interest in having troops in Jordan, Syria or Iraq. If the populace there wants to embrace Iran, that is their right.