Based on facts, either observed and verified firsthand by the reporter, or reported and verified from knowledgeable sources. President Donald Trump called his global tariff policy an "economic revolution" on Saturday, using his Truth Social platform to defend the sweeping trade moves that led China to announce retaliatory tariffs on Friday. The president claimed that China "has been hit much harder than the USA" from the recently announced trade policies and urged Americans to "hang tough." Newsweek has reached out to several global trade experts and economists for comment via email on Saturday. Why It Matters Trump's mid-week announcement included…