Samuel Augustus “Sam” Nunn, Jr. is an American lawyer and politician. Currently the co-chairman and Chief Executive Officer of the Nuclear Threat Initiative (NTI), a charitable organization working to reduce the global threats from nuclear, biological and chemical weapons,

Nunn served for 24 years as a United States Senator from Georgia (1972 until 1997) as a member of the Democratic Party. His political experience and credentials on national defense reportedly made him a potential running mate for Democratic presidential candidates John Kerry (2004) and Barack Obama (2008).