US strikes on Iran lead to renewed demands for war powers legislation 

Lawmakers from the Democratic Party have condemned the US attacks on Iran as a “dangerous” and “unnecessary” escalation, and called on the Senate to immediately vote on legislation that would block the president’s ability to take further military action without congressional approval.

Senator Tim Kaine, a member of the Senate Armed Services and Foreign Relations Committees and the primary author of the war powers resolution, called President Donald Trump’s order to attack Iran a “colossal mistake”.

“The Senate should immediately return to session and vote on my War Powers Resolution to block the use of US forces in hostilities against Iran,” Kaine said in a statement on Saturday. “Every single Senator needs to go on the record about this dangerous, unnecessary, and idiotic action.”

House of Representatives Minority Leader Hakeem Jeffries echoed Kaine, saying that House Democrats are committed to forcing a floor vote on a measure to restrict Trump’s war powers regarding Iran.

“Donald Trump failed to seek Congressional authorisation prior to striking Iran. Instead, the President’s decision to abandon diplomacy and launch a massive military attack has left American troops vulnerable to Iran’s retaliatory actions,” he said in a statement. “The Trump administration must explain itself to the American people and Congress immediately.”

The push for a legislative check on Trump’s executive power has gained significant bipartisan momentum in the Senate, of which the Republican Party maintains a slim majority.

Senate Minority Leader Chuck Schumer demanded on Saturday that Congress be briefed immediately about the Iran attacks, including an all-senators classified session and public testimony, criticising the administration for not providing details on the threat’s scope and immediacy.

“The administration has not provided Congress and the American people with critical details about the scope and immediacy of the threat,” he said in a statement.

Senator Mark Warner, vice chairman of the Senate Select Committee on Intelligence, described the strikes in a statement posted on X as “a deeply consequential decision that risks pulling the United States into another broad conflict in the Middle East”.

He questioned the urgency and intelligence behind the attack, warning of repeating “mistakes of the past”, like the Iraq war.

“The American people have seen this playbook before – claims of urgency, misrepresented intelligence, and military action that pulls the United States into regime change and prolonged, costly nation-building,” he said.

While the push to curb executive military authority is largely driven by the Democratic caucus, a growing contingent of Republican lawmakers has signalled a rare break from the White House to join the effort.

Republican representative Thomas Massie, one of the most outspoken critics, described the strikes as “acts of war unauthorised by Congress”.

“I am opposed to this War. This is not America First,” he wrote on X.

In the Senate, Republican Senator Rand Paul, who also co-sponsored the war powers resolution, said his opposition to the war is based on constitutional principles.

“My oath of office is to the Constitution, so with studied care, I must oppose another Presidential war,” he said on X.