A:US Presidents who have won the Nobel Peace Prize:
- Theodore Roosevelt (1905)
- Woodrow Wilson (1919)
- Jimmy Carter Jr (2002)
- Barack Obama (2009)
More information about each award:
- Teddy Roosevelt won it in 1905 for helping to end the Russo-Japanese War.
- Woodrow Wilson won it in 1919 after pushing to join the League of Nations.
- Jimmy Carter won it in 2002- (not while he was elected in office) for humanitarian efforts.
- Barack Obama won it in 2009 for "extraordinary efforts to strengthen international diplomacy and co-operation between peoples".
