Last year, says Mr McGregor, small Midwestern vehicle companies lobbied Washington against steel tariffs that have increased the cost of certain types of steel.

• 麦格雷戈先生表示，去年，中西部一批规模较小的汽车公司向美国政府游说，反对征收钢铁关税，因为钢铁关税会导致某些种类的钢铁价格上涨。