U.S. President Donald Trump’s new tariffs on U.S. imports from dozens of countries went into effect on Thursday as part of his administration’s efforts to reshape global trade.

The Trump administration's tariffs are expected to raise $50 billion a month, with revenue going into the general fund.

President Donald Trump’s trade war with the world came into force at midnight, with sweeping tariffs hitting scores of America’s commercial partners. But what happens next is profoundly unclear. The two critical questions: Are the tariffs working?