During a campaign event Thursday, Cain was caught on camera joking about sexual harassment allegations against him, The Hill reported.
Someone in the crowd made a comment about Anita Hill, who in 1991 accused then-Supreme Court nominee Clarence Thomas of sexual harassment.
"Is she going to endorse me?" Cain asks, smiling.
Cain, who has compared the Anita Hill scandal to his own situation, doubled over in laughter.
"It's probably not politically correct to say but, you know, I didn't take a political correct class, so I'm going to say it," Cain continued. "I've been through hell."
Campaign spokesman J.D. Gordon said Cain, who at least four women have accused of sexually harassing them, was simply joking.
"It was a joke," Gordon said, explaining Cain was only "repeating what a supporter said."
Hill was asked about Cain's scandal this week while promoting her book "Re-Imagining Equality: Stories of Gender, Race and Finding Home."
"I am proud that the issue is now front and center," Hill said. "But much more needs to be done. Younger and younger girls are being harassed in the workplace. We must envision a workplace where sexual harassment does not exist."