U.S. President Donald Trump's India tariffs have shown Moscow's allies that he will follow through with his threat to impose secondary tariffs on countries that purchase Russian oil, though doubts remain about the practicalities of implementing them,

President Donald Trump says the United States and India are still negotiating on trade despite new tariffs slated to begin in a few days.

The president also touted agreements over hundreds of billions of dollars in foreign investment into the United States.