Rummy appeared on Larry King and did indeed submit his resignation, not once but twice!
He twice offered his resignation to President Bush over the Abu Ghraib prisoner abuse scandal, but both times was asked to stay in the job. I submitted my resignation to President Bush twice during that period and told him that ... I felt that he ought to make the decision as to whether or not I stayed on. And he made that decision and said he did want me to stay on," Rumsfeld said.