But only if a mutually-agreed-upon moderator is present. From The Daily Caller, about the conservative Republican businessman: "On Tuesday, CNN’s Piers Morgan and former Republican presidential hopeful Herman Cain got into a back-and-forth on Twitter over gun control. Morgan was not particularly impressed with Cain’s reaction to an appearance Morgan made with Ted Nugent regarding guns, and called on Cain to appear on his show [after calling Cain a 'Keyboard Warrior']."
More: "Despite Cain dismissing Morgan’s program for its low ratings on his Wednesday radio show on WSB in Atlanta, Cain said he would welcome the debate — as long as there was a moderator. 'First of all, I would welcome a debate with Piers Morgan — on his show, on my radio show — if he were to allow a moderator to moderate the debate between the two of us,' Cain said. 'You see, he calls a debate when he gets to talk over people. He gets an opportunity to frustrate whoever it is he has on the show. And so I’m going to issue a little counter to him. I’m not scared, but it’s going to have to be with a set of rules where we both go by the same set of rules. I’ll bring him on this show and debate him. I’ll debate him in studio, but we’re going to have a moderator.'"