Fired up! Ready to go!
Analysis
The phrase originated from a 2007 campaign event in South Carolina, where Obama repeated the words of a supporter, Edith Childs, who had energized a crowd with the chant. It became a signature call-and-response at his rallies throughout the 2008 campaign. Multiple media outlets and campaign documentation confirm its use.
Background
The chant became a rallying cry for Obama's campaign, symbolizing grassroots enthusiasm. Edith Childs, a local Democratic activist, first used the phrase to motivate volunteers, and Obama adopted it after witnessing its impact.
Verdict summary
Barack Obama did use the chant 'Fired up! Ready to go!' during his 2008 campaign.
Sources consulted
— The New York Times: 'The Words That Fired Up a Campaign' (2008)
— Obama campaign archives and speeches (2007-2008)
— NPR: 'The Story Behind Obama's 'Fired Up, Ready To Go' Mantra' (2008)