The Republican-controlled Senate voted Tuesday to approve a resolution seeking to limit U.S. military action against Iran, highlighting renewed congressional efforts to reassert lawmakers' constitutional role in decisions of war and peace.

The measure passed 50-48, with a handful of Republicans joining Democrats in support, Reuters reported.

The vote underscored growing concern among some lawmakers about the conflict that began Feb. 28 and the scope of presidential authority to conduct military operations without explicit congressional approval, according to Reuters.

It was not immediately clear what practical effect the resolution would have as President Donald Trump's administration continues negotiations aimed at securing a peace agreement with Iran, Reuters reported.

The action also revived a long-running debate on Capitol Hill over war powers and the balance of authority between Congress and the White House.

Democrats have repeatedly pushed legislation and resolutions seeking to limit or clarify presidential authority to launch or continue military operations without congressional authorization, arguing that the Constitution grants Congress the power to declare war.

Those efforts have at times attracted support from a smaller group of Republicans who contend that Congress has ceded too much of its war-making authority to successive administrations of both parties.

Lawmakers have advanced similar measures in recent years involving military actions tied to Iran, Yemen and other overseas conflicts, reflecting bipartisan concerns about executive branch authority in matters of war.

Supporters of Tuesday's resolution argued that Congress should have a greater voice in determining whether U.S. forces remain engaged in military operations against Iran.

Opponents argued that the commander in chief must retain flexibility to respond quickly to threats against U.S. personnel and national interests.

The vote comes as questions remain about the duration of the conflict and whether ongoing diplomatic efforts can produce a negotiated settlement.

Reuters reported that several Republicans broke with party leadership to support the measure, illustrating continued unease among some lawmakers over the military campaign and the broader question of presidential war powers.