The US debt crisis is just around the corner, and Trump can not openly and thoroughly advise on the tariff issue. The delay period of inflation transmission to entities is only one or two months, and the time window is urgent. Even if pushed to the limit, whether it is a rate cut in the first or second half of the year, the ultimate solution to the crisis can only be loose easing by the Federal Reserve. At present, Trump Powell may be playing the card of tacit understanding. Trump put pressure every day, Powell made progress by retreating, first argued for reasons and finally resigned under pressure, and then the new chairman cut interest rates, which not only maintained the independence of the Federal Reserve and the US dollar credit to a certain extent, but also solved the problem