Actor and social activist Gloria Reuben will be in D.C. next week, at the annual Campus Progress National Conference. Reuben, best known for her long-running role on "E.R." will speak on Wednesday, July 7 at the Omni Shoreham Hotel in Washington, D.C.

Reuben will discuss her efforts cleaning up the Gulf oil spill.

Joining Reuben will be Van Jones, former White House "green jobs czar," and Samantha Power, special assistant to the President.