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Hallie Jackson NOW
Exploring who has the power to declare war
03:10
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As conflict escalates in the Middle East, many have asked the question of who in power can declare war, the president or Congress? While the U.S. Constitution clearly states that Congress has the authority to declare war, decades of blurred lines have brought the question to the forefront once more. NBC News' Julie Tsirkin reports on what this means in today's political climate. March 19, 2026
