As the workday wound down in New Delhi on Wednesday, most Indian trade officials were getting ready to head home. Then their phones lit up: Donald Trump hit the nation with a 25% tariff.

U.S. President Donald Trump said that the United States has done very little business with India, and that Russia and the U.S. do almost no business together. "I don't care what India does with Russia",

The stakes are high, with the United States and India counting on each other as indispensable partners in their competition with China.