The Rev. Jesse L. Jackson, a protege of the Rev. Martin Luther King Jr. and two-time presidential candidate who led the Civil Rights Movement for decades after the revered leader’s assassination, has died. He was 84.

Jackson died Tuesday surrounded by family, according to a statement posted online from the family.

As a young organizer in Chicago, Jackson was called to meet with King at the Lorraine Motel in Memphis shortly before King was killed and he publicly positioned himself thereafter as King’s successor.

Jackson led a lifetime of crusades in the United States and abroad, advocating 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.

And when he declared, “I am Somebody,” in a poem he often repeated, he sought to reach people of all colors. “I may be poor, but I am Somebody; I may be young; but I am Somebody; I may be on welfare, but I am Somebody,” Jackson intoned.

It was a message he took literally and personally, having risen from obscurity in the segregated South to become America’s best-known civil rights activist since King.

Jackson’s voice, infused with the stirring cadences and powerful insistence of the Black church, demanded attention. On the campaign trail and elsewhere, he used rhyming and slogans such as: “Hope not dope” and “If my mind can conceive it and my heart can believe it then I can achieve it,″ to deliver his messages.

Jackson had his share of critics, both within and outside of the Black community. Some considered him a grandstander, too eager to seek out the spotlight. Looking back on his life and legacy, Jackson told The Associated Press in 2011 that he felt blessed to be able to continue the service of other leaders before him and to lay a foundation for those to come.

“A part of our life’s work was to tear down walls and build bridges, and in a half century of work, we’ve basically torn down walls,” Jackson said. “Sometimes when you tear down walls, you’re scarred by falling debris, but your mission is to open up holes so others behind you can run through.”

In his final months, as he received 24-hour care, he lost his ability to speak, communicating with family and visitors by holding their hands and squeezing.

“I get very emotional knowing that these speeches belong to the ages now,” his son, Jesse Jackson Jr., told the AP in October.

(AP)