Egyptian President Hosni Mubarak will step down Thursday night, two sources tell NBC News, and his vice president, Omar Suleiman, will take his place. After over two weeks of protests, the army chief of staff waded into the crowd and told protesters, "All your demands will be met tonight." Asked if this meant Mubarak would be stepping down, he said "It ends tonight." Mubarak is expected to speak at some point Thursday night. CIA Director Leon Panetta told Congress there's a "strong likelihood" Mubarak will step down this evening.