The incentive to show fealty to Mr. Trump has become evident to the Club for Growth, a fiscal conservative group that was made famous for its willingness to tangle with Republican leaders and was hostile to Mr. Trump in 2016.

以喜欢与共和党高层纠缠著称的增长俱乐部，2016年总统大选时还对特朗普持敌对态度，在他们看来，向特朗普表忠心的理由已经浮出水面。