Durning her interview, host Meghan McCain asked the candidate about her views on gun ownership and the Second Amendment, where she revealed she wants to take away AR-15s but wasn't sure how she would do it.
Abrams, whose team accused Kemp of backing out of his commitment, issued a lengthy release Wednesday night rejecting the late schedule change.
"I do not believe that weapons of mass destruction like the AR-15 belong in civilian hands", she said.
Winfrey is slated to appear alongside Abrams at two town halls, in Cobb and DeKalb counties, that the Abrams campaign described as "get-out-the-vote" events.
The Georgia gubernatorial race is one of the most contentious races in this year's midterm elections, due to extreme ideological differences between Abrams and Kemp and allegations of voter suppression.
Normally, celebrity support to boost a Democrat's chances in a typically red state would elicit a few chuckles from those who know exactly how far star power actually goes outside deep-blue liberal strongholds.
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While Winfrey endorsed Hillary Clinton in the 2016 presidential election and held a fundraiser for Cory Booker during his Senate run in 2013, the last time the media mogul hit the campaign trail for a political candidate was for Barack Obama in 2008.
The conflict of interest regarding Kemp's role as Georgia's Secretary of State and as statewide candidate entered a new phase after it was discovered that Kemp was silent on the "exact match" law in Georgia.
In Georgia, election officials have suspended more than 50,000 applications to register to vote, a lot of them for black voters, under a rigorous Republican-backed law that requires personal information to exactly match driver's licence or Social Security records.
"I don't want to run, OK?"
Winfrey did not mention Pence or the frequent GOP broadsides about "Hollywood" outsiders.
As a black woman, Winfrey noted her kinship to two groups historically denied ballot access in the United States.