Eight Senate Republicans broke with President Donald Trump on Thursday – joining all the chamber's Democrats to support legislation that would restrict the president's ability to wage war with Iran, reports USA Today.

Most of the Senate's 53 Republicans voted against the measure, which would direct the president to terminate the use of U.S. military force engaged in “hostilities against Iran” unless explicitly authorized by Congress.

Republican opponents said the Senate proposal would severely limit the Pentagon's ability to defend the USA against threats posed by Iran. They blasted Democrats for their criticism of the Soleimani killing.