These 7 GOP senators are backing a bill to curb Trump's tariff powers

Several GOP senators, including former Senate Minority Leader Mitch McConnell, have backed the Trade Review Act.

Bill Clark and Tom Williams/CQ-Roll Call via Getty Images; Al Drago/Getty Images

• Lawmakers introduced a bill to limit Trump's ability to maintain tariffs without their approval.
• Several GOP senators have already signed onto it as cosponsors.
• It's the clearest sign that Trump's tariff plan is causing a major rift within his party.

President Donald...