Senator Tim Kaine Proposes Bill to Prevent Trump from Attacking Iran Without Congressional Approval

Web Editor

June 16, 2025

a man in a suit and tie speaking to reporters in front of a machine with a television screen on it,

Background on Senator Tim Kaine

Tim Kaine is a United States Senator representing Virginia. He is a member of the Senate Foreign Relations Committee and has been actively involved in shaping U.S. foreign policy. Kaine’s political career includes serving as Governor of Virginia from 2006 to 2010 and as Lieutenant Governor from 1998 to 2006. He was chosen by Hillary Clinton to be her running mate in the 2016 presidential election, further establishing his prominence within the Democratic Party.

The Proposed Legislation

Senator Tim Kaine introduced a bill on Monday to prevent President Donald Trump from launching a military attack on Iran without the approval of Congress, amid rising tensions in the region. Kaine, a member of the Senate Foreign Relations Committee, expressed concern about the possibility of the United States being drawn into “another endless conflict” in the Middle East.

Constitutional Basis

Kaine emphasized that “under the Constitution, Congress has the exclusive power to declare war.” The proposed legislation aims to ensure a public debate and a vote in both chambers of Congress regarding the use of military force. However, it does not hinder the United States from defending itself against an imminent attack.

Previous Efforts

Kaine previously introduced a similar measure in 2020 to prevent a U.S. attack on Iran, which was approved by a 55-45 vote in the Senate. His ongoing efforts reflect his commitment to upholding the constitutional balance of power and ensuring that decisions regarding military action are subject to thorough deliberation and approval by the legislative branch.

Key Questions and Answers

  • Who proposed the bill? Senator Tim Kaine, a Democrat representing Virginia and a member of the Senate Foreign Relations Committee.
  • What is the purpose of the proposed legislation? To prevent President Trump from launching a military attack on Iran without the approval of Congress.
  • What constitutional basis does the bill rely on? The bill asserts that Congress has the exclusive power to declare war, as outlined in the U.S. Constitution.
  • What does the legislation aim to ensure? A public debate and a vote in both chambers of Congress regarding the use of military force, while still allowing for defense against imminent attacks.
  • Has Senator Kaine introduced similar measures before? Yes, in 2020, he proposed a measure to prevent a U.S. attack on Iran, which was approved by the Senate with a 55-45 vote.