#Trump100Days The first 100 days of Donald Trump's second presidency began on January 20, 2025, the day of Donald Trump's inauguration as the 47th president of the United States. The first 100 days of the presidency gained symbolic significance during Franklin D. Roosevelt's first term, and this period is considered a benchmark for measuring the early success of a president. The 100th day of Trump's second presidency will be April 30, 2025.