WASHINGTON — Treasury Secretary Janet L. Yellen has cast doubt on the merits of the trade agreement between the United States and China, arguing that it has failed to address the most pressing disputes between the world’s two largest economies and warning that the tariffs that remain in place have harmed American consumers.Ms. Yellen’s comments, made in an interview with The New York Times this week, come as the Biden administration is seven months into an extensive review of America’s economic relationship with China. The review must answer the central question of what to do about the …
