Representative Tom Barrett of Michigan has introduced legislation to limit and formally authorize United States military operations in Iran through the end of July, signaling Republican unease with the ongoing conflict. The proposal would prohibit sustained ground combat and set clear boundaries on how force may be used, including targeting Iran’s nuclear program, addressing imminent threats to American personnel, enforcing a naval blockade, and protecting shipping routes in the Strait of Hormuz.

Barrett’s bill would expire on July 30, with a possible 30 day extension to wind down operations. He said Congress must assert its constitutional authority to define the mission and impose safeguards and deadlines, citing lessons from past military engagements.

The move follows President Donald Trump’s assertion that active hostilities had ended after an April ceasefire and that he was not bound by the statutory deadline to seek congressional authorization. Despite that claim, naval enforcement actions and troop deployments have continued, and recent exchanges of fire have been reported. Growing concern among Republican lawmakers reflects political pressure as the conflict stretches on without formal approval from Congress.