The amendment, which was proposed by Democrat Keith Maurice Ellison and gained the support of a number of other Democrat as well as Republican MPs, was unanimously approved.
Ellison, who is Member of Congress from Minnesota's Fifth District said in a message on twitter that the clear message of the amendment was that the people of America and members of Congress were not calling for a war on Iran, adding the Congress regained the authority to use military force.
This announcement comes two weeks after US President Donald Trump illegally pulled the US out of the nuclear deal with Iran, which many analysts believed that it was like a declaration of war on Iran.
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