NEW : He `` leaves big shoes behind , and none of us can fill them , '' NAACP chief says . The NAACP has been a major force in the civil rights movement for more than 50 years -- but it is now facing its biggest challenge since President Obama took office. Urban League president praises his work in the trenches , juggling of responsibilities . Hooks , 85 , died last week after a lengthy illness , NAACP officials said . Hooks led the NAACP from 1977 to 1992 .
NEW : He `` leaves big shoes behind , and none of us can fill them , '' NAACP chief says . NEW : Urban League president praises his work in the trenches , juggling of responsibilities . Hooks , 85 , died last week after a lengthy illness , NAACP officials said . Hooks led the NAACP from 1977 to 1992 .