WASHINGTON, July 25 (Reuters) - U.S. President Donald Trump is unlikely to follow through on his threat to place 100% tariffs on countries that buy Russian oil because it would worsen politically-damaging inflation pressures and his similar threat against buyers of Venezuelan oil has had limited success, especially in China.

President Trump’s new levies, which have pushed the country’s tariffs to their highest levels in decades, are typically paid by importers when goods reach U.S. ports. So there is little mystery about who makes that first payment.