Why would a man who has achieved so much and made so much money, who combined the latter stages of his career with spells in Congress and the Senate and who, during his aborted retirement, ran for president, want or need to take punches in the head from a relatively fresh 30-year-old? Have the multiple political campaigns and his admirable penchant for handing out money to the poor drained his formerly swollen coffers? Does he miss it all: the attention, the training, the ringwalks, the sight of his face on a marquee, the feeling of sanctioned combat?Â