Trump’s Greenland tariffs, Joe Biden’s victory to Debt ceiling deal – Key events that moved the dollar in recent years by Live mint | January 23, 2026 4:04 pm | Indian Stocks, Market, News The sharpest single-day fall in the dollar occurred on January 20, 2025, the day of Trump’s inauguration as the 47th US President. The USD plunged 1.38% against the euro, as investors reassessed potential policy risks and uncertainties.