Kaine introduces war powers resolution requiring approval for Iran strike


Summary

War powers resolution

Sen. Tim Kaine, D-Va., introduced a war powers resolution that would require the president to get congressional approval for strikes against Iran.

Operation Rising Lion

Israel began Operation Rising Lion last week, a series of attacks against Iranian nuclear and military sites. Iran hit back with missile and drones strikes.

Article 1

Article 1 of the Constitution gives Congress the sole power to declare war. Kaine's resolution requires a briefing, debate and vote before strikes on Iran.


Full story

Sen. Tim Kaine, D-Va., introduced a war powers resolution that would require the president to obtain a declaration of war or authorization for the use of military force from Congress before striking Iran. The resolution is “privileged,” meaning the Senate is required to promptly debate and vote on the measure, likely during the week of June 15. 

“It is not in our national security interest to get into a war with Iran unless that war is absolutely necessary to defend the United States,” Kaine said in a statement. “I am deeply concerned that the recent escalation of hostilities between Israel and Iran could quickly pull the United States into another endless conflict.”

Kaine’s resolution makes the following points:

  • Congress has the sole power to declare war under Article I, Section 8, Clause 11 of the United States Constitution.
  • Congress has not yet declared war upon, nor enacted a specific statutory authorization for the use of military force against Iran.
  • The question of whether United States forces should be engaged in hostilities against Iran should be answered following a full briefing to Congress and the American public of the issues at stake, a public debate in Congress, and a congressional vote as contemplated by the Constitution.

The resolution still allows the United States to take any defensive measures necessary in the event of an attack. 

Israel began what it described as preemptive strikes against Iran’s nuclear program during the week of June 8 as part of Operation Rising Lion. Israeli jets struck Iranian nuclear and military sites around the country. In response, Iran sent a barrage of missiles and drones at Israel which hit both civilian and military infrastructure including Israel’s equivalent of the Pentagon.

President Donald Trump has said the U.S. will not get involved in the war, preferring to reach instead a deal with Iran involving the country’s nuclear enrichment. The U.S. has assisted Israel in defending against Iranian missile barrages. Iran has threatened any country that supports Israel in the conflict. 

“The American people have no interest in sending service members to fight another forever war in the Middle East,” Kaine said. “This resolution will ensure that if we decide to place our nation’s men and women in uniform into harm’s way, we will have a debate and vote on it in Congress.”

Kaine sponsored previous congressional war powers resolutions that rescinded the 1991 and 2002 authorizations for the use of military force to formally end the Gulf and Iraq Wars. Both the House and Senate have separately voted to repeal the 2002 AUMF, however, they have never done so during the same Congress, and therefore it has not been made into law.

Snorre Wik (Director of Photography/Non-Linear Editor) and Mathew Grisham (Digital Producer) contributed to this report.
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Why this story matters

A proposed Senate resolution requiring congressional authorization before any U.S. military action against Iran highlights debates over executive and legislative war powers and U.S. involvement in Middle Eastern conflicts.

War powers

The resolution underscores ongoing discussions about Congress's constitutional role in authorizing military force, emphasizing the requirement for legislative approval before engaging in hostilities with Iran.

U.S.–Iran conflict

Recent military actions between Israel and Iran and their potential to draw in the United States raise concerns about escalation and the prospect of direct involvement in another Middle Eastern conflict.

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Context corner

In 2020, Tim Kaine's Iran war powers resolution passed the Senate 55–45, but not by enough to override President Trump's veto. These numbers reflect some bipartisan concern in Congress over unilateral military actions against Iran, but also show the significant threshold for overriding a presidential veto.

Global impact

This debate has significant international implications. Escalation between Israel and Iran could lead to a wider regional war, affecting global energy markets and international relations. World leaders, meeting at forums such as the G7, have expressed concerns about regional stability, potential civilian casualties and the precedent set for future unilateral military actions by major powers.

Quote bank

“It is not in our national security interest to get into a war with Iran unless that war is absolutely necessary to defend the United States," Sen. Tim Kaine said. “We’re not involved in it. It’s possible we could get involved," President Trump stated. “The president cannot circumvent congressional war powers," Rep. Rashida Tlaib said.

Bias comparison

  • Media outlets on the left frames Kaine’s war powers resolution as a crucial defensive measure to “prevent Trump from attacking Iran,” emphasizing presidential overreach and describing Israel’s strikes as illegal aggression linked to a “far-right” Netanyahu regime, using stark phrases like “endless war” and “genocidal maniac” to evoke moral urgency and antiwar sentiment.
  • Media outlets in the center maintain a more procedural tone, balancing the resolution’s constitutional basis with geopolitical complexities, notably Israel’s military progress.
  • Media outlets on the right highlight Trump’s “anti-war” stance and cautious pragmatism, portraying the resolution as a legislative check that could hinder U.S. strategic flexibility, with a tone that valorizes national security and skepticism toward Congress’s limitations.

Media landscape

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Key points from the Left

  • A Democratic senator introduced legislation to prevent President Donald Trump from using military force against Iran without Congress's authorization, amid an escalating battle between Israel and Iran.
  • U.S. Senator Tim Kaine introduced a war powers resolution to prevent President Donald Trump from attacking Iran without congressional authorization.
  • The resolution is aimed at ensuring any U.S. military action against Iran must have explicit approval, following escalating conflicts.
  • Kaine expressed concern that U.S. involvement could lead to an 'endless conflict' and emphasized that war should only occur under specific congressional authorization.

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Key points from the Center

  • Sen. Tim Kaine introduced a war powers resolution on Monday to require congressional approval before the U.S. joins Israel's war against Iran.
  • The resolution responds to Israel's recent strikes on Iranian nuclear sites and rising hostilities that could draw the U.S. into another prolonged conflict.
  • Kaine's resolution mandates Congress debate and vote on any offensive military action against Iran while allowing U.S. defense against imminent threats.

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Key points from the Right

  • A Senate Democrat, Tim Kaine, introduced a resolution on June 16 requiring Congress to debate and vote before U.S. military action against Iran.
  • The resolution aims to reinforce that Congress has the sole power to declare war under the Constitution and any military action against Iran must be authorized.
  • President Donald Trump has emphasized a preference for a diplomatic resolution and praised Israel's military actions while denying U.S. involvement in the conflict.
  • Kaine expressed concern about U.S. involvement in conflict, stating, "The American people have no interest in sending service members to fight another forever war in the Middle East."

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