Georgia must make changes to its procedures to make it easier for people flagged under a state law to vote, a federal judge ruled Friday.
And in a nod to the allegations of voter suppression that have marked the gubernatorial race, Winfrey told the crowd that "every single one of us has something that, if done in numbers too big to tamper with, can not be suppressed and can not be denied".
Republicans in Georgia, including Kemp, have pushed for strict voter ID laws, citizenship checks and aggressive voter roll maintenance in the name of protecting elections against fraud and noncitizens voting.
Ross also said Kemp must also update the secretary of state's website with guidance for voters flagged as noncitizens, including contact information for voters to call with questions.
Within days of reports about the policy, a coalition of civil rights groups filed a lawsuit against Kemp, but since then, more alarming incidents and revelations have arisen. "She's a woman who dared believe she could change the state of Georgia".
In the case on absentee ballots, the U.S. Court of Appeals for the 11th Circuit rejected Kemp's request to stay a lower court's ruling blocking election officials from throwing out absentee ballots for a supposed signature mismatch, without giving voters an opportunity to contest that and confirm their identity.
Winfrey, who said she is a registered independent, has long championed Democratic Party causes and some fans earlier this year tried to encourage her to run against Republican President Donald Trump in 2020.
"I'd like to remind Stacey and Oprah and Will Ferrell", Pence said at a rally in Dalton, Georgia.
"Seven million Georgians are now on our voter rolls - that's one million more than when I took office in 2010", Kemp said.
But Ross' order said that process wasn't working because some citizens have been turned away from the polls.
In a recent campaign statement, Kemp also said that minority participation is up and turnout records have been exceeded during his tenure as secretary of state. In October, a coalition of civil rights groups sued him.