Gloria Borger : Herman Cain seems to know little about national issues , presidency . She says he has n't adequately dealt with allegations of sexual harassment . Cain seemed to have little sense of U.S. policy on Libya , Borger says . Borger : The former CEO of Godfather's Pizza is running for president as a Republican and the first Mormon in American history.
Gloria Borger : Herman Cain seems to know little about national issues , presidency . She says he has n't adequately dealt with allegations of sexual harassment . Cain seemed to have little sense of U.S. policy on Libya , Borger says . Borger : Other GOP candidates should challenge Cain on his lack of fitness for candidacy .