The case against Iraqing Iran includes the following points:
Threatening war is a violation of the U.N. Charter.
Waging war is a violation of the U.N. Charter and of the Kellogg-Briand Pact.
Waging war without Congress is a violation of the U.S. Constitution.
Have you seen Iraq lately?
Have you seen the entire region?
Have you seen Afghanistan? Libya? Syria? Yemen? Pakistan? Somalia?
War supporters said the U.S. urgently needed to attack Iran in 2007. It did not attack. The claims turned out to be lies.