Story highlights "We trust her to work on health care, to fight for the poor," Jackson said

Clinton has sought to coalesce Democratic and progressive support around her candidacy

Washington (CNN) The Rev. Jesse Jackson endorsed Hillary Clinton on Saturday, continuing a recent string of high-profile endorsements for the presumptive Democratic nominee.

Jackson, speaking in Chicago, said he trusts that Clinton will look out for the interests of marginalized communities including refugees, immigrants and the poor.

"We trust her to work on health care, to fight for the poor ... for the willingness to fight for civil rights," Jackson said.

Jackson, who unsuccessfully sought the Democratic nomination for president in 1984 and 1988, endorsed Clinton at the site of a memorial recognizing the hundreds of children killed in the city in recent years. The civil rights activist said in a news release that he was making the endorsement independent of his non-profit organization, Rainbow PUSH Coalition, a civil rights group.

Read More