This sound is from Barack Obama Sounds

Obama left office on January 20, 2017, and continues to reside in Washington, D.C. Since leaving office, he has remained active in Democratic politics. He increased U.S. troop levels in Afghanistan, reduced nuclear weapons with the United States–Russia New START treaty, ended military involvement in the Iraq War.
See also: Family of Barack Obama, Barack Obama Sr., Presidency of Barack Obama, Cabinet of Barack Obama, First inauguration of Barack Obama, Speeches of Barack Obama.