Which president endorsed the policies of the Great Society?

Lyndon B. Johnson is credited with endorsing and implementing the policies of the Great Society, a series of domestic programs aimed at eliminating poverty and racial injustice in the United States. Johnson launched the Great Society initiatives during his presidency in the 1960s, building upon some of the earlier ideas proposed by his predecessor, John F. Kennedy. The core components of the Great Society included significant expansions in education, healthcare (like Medicare and Medicaid), urban development, and civil rights, reflecting Johnson's vision for a more equitable society. This ambitious legislative agenda transformed American government and social policy during that era, aiming to create a "great society" in which all citizens could thrive.

The other presidents mentioned did not lead the Great Society programs: Kennedy, although he laid some groundwork for social reforms, did not have the chance to implement policies on the same scale as Johnson. Richard Nixon's administration took a different approach, focusing more on a conservative restoration and rearranging some Great Society programs rather than endorsing them. Franklin D. Roosevelt, while instrumental in establishing the New Deal in response to the Great Depression, was not associated with the Great Society, which came later in American history.