Walter Jones, the Republican congressman for North Carolina who was also the brains behind french toast becoming freedom toast in Capitol Hill restaurants, told a local newspaper the US went to war "with no justification".
Mr Jones, who in March 2003 circulated a letter demanding that the three cafeterias in the House of Representatives' office buildings ban the word french from menus, said it was meant as a "light-hearted gesture".
But the name change, still in force, made headlines around the world, both for what it said about US-French relations and its pettiness.
Now Mr Jones appears to agree. Asked by a reporter for the North Carolina News and Observer about the name-change campaign - an idea Mr Jones said at the time came to him by a combination of God's hand and a constituent's request - he replied: "I wish it had never happened."
Although he voted for the war, he has since become one of its most vociferous opponents on Capitol Hill, where the hallway outside his office is lined with photographs of the "faces of the fallen".
"If we were given misinformation intentionally by people in this administration, to commit the authority to send boys, and in some instances girls, to go into Iraq, that is wrong," he told the newspaper. "Congress must be told the truth."
