Many people who knew and worked with the Rev. Jesse L. Jackson Sr. are vowing to ‘keep hope alive’ in honor of his legacy. Jackson led the U.S. Civil Rights Movement for decades. The protege of the Rev. Martin Luther King Jr. and two-time presidential candidate died Tuesday morning at the age of 84. In the United States and abroad, he advocated for the poor and underrepresented on issues from voting rights and job opportunities to education and health care. He scored diplomatic victories with world leaders, and through his Rainbow/PUSH Coalition, he channeled cries for Black pride and self-determination into corporate boardrooms, pressuring executives to make America a more open and equitable society.