BENGHAZI, Libya -- Libya's de facto leader said Wednesday he is optimistic the ex-rebels will declare total victory over forces loyal to Moammar Gadhafi in less than a week, opening the way for a new transitional government to be formed within a month.Despite heavy resistance, revolutionary forces are closing in on Gadhafi's forces in the ousted dictator's hometown of Sirte, the most important of two major cities yet to be cleared of armed supporters of the old regime.Read More... More on Muammar Gaddafi