Sen. Tammy Baldwin (D-Wis.) said the U.S. has moved "backwards, not forward" in President Donald Trump’s "war of choice" against Iran.

Baldwin's push for congressional intervention highlights a growing constitutional clash over the executive branch's power to wage war without legislative approval. The debate centers on the legality of the conflict and the depletion of federal resources.

Speaking from the steps of the U.S. Capitol on April 14, 2026, Baldwin said the conflict is an illegal war that is costing American lives [1]. She said the war is draining critical U.S. resources, citing a cost of $29 billion to date [2].

Baldwin said Congress should assert its constitutional war-powers authority to stop the conflict [1]. This call for oversight comes as the Pentagon's budget request for fiscal year 2027 reaches $1.5 trillion [2].

"President Donald Trump is waging an illegal war of choice in Iran," Baldwin said in a statement reported from Madison, Wisconsin [3].

Legislative efforts to halt the conflict have met significant resistance in the Senate. While Baldwin sought to force a vote on a War Powers Resolution, the Senate eventually voted 52-47 against a resolution that would have stopped the war [4].

Republicans have continued to support the administration's strategy. An unnamed GOP spokesperson said Senate Republicans are backing the war as the deadline for congressional involvement approaches [5].

"We’ve gone backwards, not forward with Trump’s war of choice in Iran."

The friction between Sen. Baldwin and Senate Republicans underscores a fundamental disagreement over the War Powers Act and the limits of presidential authority. By framing the conflict as an 'illegal war of choice,' Baldwin is attempting to shift the debate from strategic efficacy to constitutional legitimacy, though the 52-47 Senate vote suggests the executive branch maintains sufficient legislative cover to continue operations.