The Democratic Leadership Council, an organization of influential party moderates, on Monday named Sen. Hillary Rodham Clinton, D-N.Y., to direct a new initiative to define a party agenda for the 2006 and 2008 elections. The appointment solidified the identification of Clinton -- once considered a champion of the party's left -- with the centrist movement that helped propel her husband to the White House in 1992. It also continued her effort, which has accelerated in recent months, to present herself as a moderate on issues such as national security, immigration and abortion. In her new role, Clinton immediately called for...