World War I
President: Liberal Democrat Woodrow Wilson
Senate
Majority Party: Democrat (54 seats)
Minority Party: Republican (42 seats)
House
Majority Party: Democrat (220 seats)
Minority Party: Republican (214 seats)

World War II
President: Liberal Democrat Franklin D. Roosevelt
Senate
Majority Party: Democrat (68 seats)
Minority Party: Republican (28 seats)
House
Majority Party: Democrat (273 seats)
Minority Party: Republican (162 seats)

Nuking Japan
President: Liberal Democrat Harry S. Truman
Senate
Majority Party: Democrat (58 seats)
Minority Party: Republican (38 seats)
House
Majority Party: Democrat (244 seats)
Minority Party: Republican (191 seats)

Korean War
President: Liberal Democrat Harry S. Truman
Senate
Majority Party: Democrat (54 seats)
Minority Party: Republican (42 seats)
House
Majority Party: Democrat (263 seats)
Minority Party: Republican (171 seats)

Vietnam War
President: Liberal Democrat Lyndon B. Johnson
Senate
Majority Party: Democrat (68 seats)
Minority Party: Republican (32 seats)
House
Majority Party: Democrat (295 seats)
Minority Party: Republican (140 seats)

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