Nearly four weeks into a costly global trade war with no end in sight, Mr. Trump is facing a barrage of lawsuits from state officials, small businesses and even once-allied political groups, all contending that the president cannot sidestep Congress and tax virtually any import at levels to his liking.

LONDON >> With the end of a U.S. tariff exemption for small parcels today, some retailers have stopped selling to customers in the United States while others are seeking temporary workarounds in the hope the tariff rate may be reduced.

Small businesses plead with President Donald Trump for tariff exemptions to prevent recession. Advertisement. About Our Ads; Advertisement. Advertisement. Advertisement

Workers are betting that Trump’s tariffs will result in only temporary discomfort for the stock market and consumers while bringing back better jobs and wages. Trump signed an executive order aboard Air Force One as he flew to the Michigan rally easing some of his auto tariffs, which are scheduled to go into effect May 3.

Uncertainty continues to hang over the latest round of financial results and forecasts for companies both big and small as they try to navigate a global trade system severely shaken by a shift in U.S.