President Trump posted the letters to country leaders — including of Japan and South Korea — on social media, informing them of the new rates. The White House expects about 14 letters to go out today.

“Any Country aligning themselves with the Anti-American policies of BRICS, will be charged an ADDITIONAL 10% Tariff. There will be no exceptions to this policy,” Mr. Trump said in a Truth Social post. He did not elaborate, nor did he say what BRICS policies he was referring to.