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

For Meta, Alphabet and other platforms, the elimination of the tariff exemption for inexpensive goods is already cutting into advertising revenue.

The Trump administration closed a tariff loophole on packages from China and Hong Kong with a value of $800 or less.

President Donald Trump has closed a tariff loophole that allowed Chinese e-commerce giants like Shein and Temu to sell low-cost goods in the U.S. without paying duties—a move that is expected to drive up prices for American consumers.