Republican Rep. Massie: Constitution stipulates declaration of war is within Congress's authority, even if war concerns us.

Republican Rep. Massie: Constitution stipulates declaration of war is within Congress's authority, even if war concerns us.

Senator Tim Kaine (D-VA) introduced a war powers resolution that mandates presidential authorization from Congress before any military strikes against Iran. This move comes amidst escalating tensions between Israel and Iran, with Israel launching Operation Rising Lion and Iran retaliating with missile and drone strikes [1].

Kaine's resolution, which is "privileged," necessitates a prompt debate and vote in the Senate, likely during the week of June 15. The resolution underscores that Congress has the sole power to declare war under Article I, Section 8, Clause 11 of the Constitution. It also highlights that no specific authorization for military force against Iran has been enacted [1].

The resolution allows defensive measures in case of an attack but requires a full briefing to Congress and the public before any offensive action. This stance aligns with Kaine's previous efforts to repeal the 2002 Authorization for the Use of Military Force (AUMF) and his concern about the U.S. being drawn into another "endless conflict" [1].

The bill invokes the War Powers Resolution of 1973, aiming to constrain presidential powers to engage in military hostilities without clear congressional authorization. While it faces an uphill battle, especially with a Republican-controlled Congress and a likely presidential veto, it may garner support from conservative lawmakers who oppose foreign military interventions [2].

The U.S. has not ruled out involvement in the conflict, but President Trump has called for a diplomatic resolution. Israel's bombardment campaign against Iran has sparked calls for U.S. support, with some Republicans urging Trump to "go all-in" to help Israel. However, many lawmakers, including right-wing Congresswoman Marjorie Taylor Greene, caution against American involvement, citing the cost and risks of another Middle Eastern war [2].

The resolution, if passed, would serve as a de-escalatory signal and remind the administration that only Congress can declare war. It may also gauge opposition to war with Iran in Congress, particularly among Republicans [2].

References:
[1] https://san.com/cc/kaine-introduces-war-powers-resolution-requiring-approval-for-iran-strike/
[2] https://www.aljazeera.com/news/2025/6/16/us-senator-introduces-bill-to-curb-trumps-power-to-go-to-war-with-iran