The course of a presidential legacy is often defined by the actions a president takes in his or her first 100 days of office. These first 100 days, often called "the honeymoon period," are an opportune time for a president to sway the country's policy because of the public and congressional approval granted to a newly elected chief of state.

By passing 12 pieces of New Deal legislation during his first 100 days in office, 32nd President Franklin Delano Roosevelt set a monumental standard for subsequent presidents to follow. Although a president's first 100 days were an insignificant matter before FDR's presidency, this period became a benchmark of political effectiveness after Roosevelt set his golden standard. In fact, 70 years later, the first 100 days are still used as a predictor for the future success of a president's term.