A report on Democratic Party (United States), Franklin D. Roosevelt, Republican Party (United States) and Modern liberalism in the United States

Its main political rival has been the Republican Party since the 1850s.

As a member of the Democratic Party, he won a record four presidential elections and became a central figure in world events during the first half of the 20th century.

Since the mid-1850s, it has been the main political rival of the Democratic Party.

As a dominant leader of his party, he built the New Deal Coalition, which defined modern liberalism in the United States throughout the middle third of the 20th century.

Since Franklin D. Roosevelt and his New Deal coalition after 1932, the Democratic Party has promoted a social liberal platform.

Since the 1960s, the Democratic Party has been considered liberal and the Republican Party has been considered conservative.

In the 1932 presidential election, Roosevelt defeated Republican incumbent Herbert Hoover in one of the largest landslide victories in US history.

Modern liberalism took shape during the 20th century, with roots in Theodore Roosevelt's Square Deal and New Nationalism, Woodrow Wilson's New Freedom, Franklin D. Roosevelt's New Deal, Harry S. Truman's Fair Deal, John F. Kennedy's New Frontier and Lyndon B. Johnson's Great Society.

The Democratic Party's philosophy of modern liberalism blends notions of civil liberty and social equality with support for a mixed economy.

The GOP lost its congressional majorities during the Great Depression (1929–1940) under President Franklin D. Roosevelt, whose popular New Deal programs shifted the country towards the Democratic Party for most of the next three decades.

He called for social reforms, many of which were later championed by New Deal Democrats in the 1930s.