(CNN) - Republican presidential candidate Herman Cain said Tuesday that the financial settlement with one of his sexual harassment accusers "was in the vicinity of 3 to 6 months (of) severance pay."
The payment was "not outside our guidelines for what most people get ... when they leave the restaurant association involuntarily," he said.
Cain told HLN Tuesday that sexual harassment charges made against him "may affect the poll numbers" in the GOP nomination fight, but "most" of his supporters are not abandoning his campaign.
"We're not going to allow these distractions to get us off message," Cain said.
Cain said that, in regard to sexual harassment complaints made against him, "this was 12 years ago. I was falsely accused."
Cain said he remembers a "separation agreement," as opposed to a "legal settlement" with one of his accusers."We were in my office. The door was wide open" when the alleged offense occurred, Cain said. Cain noted that his secretary was sitting outside at the time of the incident.
Cain said his story has shifted as he has recalled more about the incident.
Cain told HLN he recalls nothing about a second alleged incident of harassment. The charges were "so ridiculous that I don't remember what they are," he said.
"Obviously someone is encouraging them to bring it up now because I'm doing so well" in the GOP nomination fight, he said. "I absolutely believe that this is an intended smear campaign."