原标题：汪开军：康明斯是中国汽车行业合资合作的见证者、参与者、推动者In recent years, the U.S. domestic politics has been mired in infighting, with key issues affecting government operation, people's lives and national development have become partisan bargaining chips. A real-life version of "House of cards" is playing out. (Wei Chenxi, Yang Xin)
