A protester shouts as he stands on top of a barricade in front of soldiers outside the Supreme Constitutional Court in Cairo on June 14. Ex-military officer Ahmed Shafik was given the green light on Thursday to run for president when Egypt's constitutional court ruled against a law that would have thrown him out of the race, judicial sources said.

Egyptians protest outside the Supreme Constitutional Court in Cairo on June 14, as the court examined a law which threatened to bar presidential candidate and former premier Ahmed Shafiq from competing in this weekend's presidential runoff.

A protester covers his mouth with tape outside the Supreme Constitutional Court, where a decision is expected on the validity of the law passed by the Islamist-led parliament that sought to bar Ahmed Shafik, Hosni Mubarak's last prime minister, from the vote pitting him against the Muslim Brotherhood's Mohamed Morsy, in Cairo on June 14.

An Egyptian protester holds a crossed out portrait of presidential candidate and former premier Ahmed Shafiq with the Arabic writing "Down with Ahmed Shafiq" during a protest outside the Supreme Constitutional Court in Cairo on June 14, 2012 as the court examines a law which threatens to bar Shafiq from competing in this weekend's presidential runoff. The Supreme Constitutional Court is examining the legality of the political isolation law which bars senior officials of the Hosni Mubarak regime and top members of his now-dissolved National Democratic Party from running for public office for 10 years.

Egyptians protest outside the Supreme Constitutional Court in Cairo on June 14, as the court examines a law which threatens to bar presidential candidate and former premier Ahmed Shafiq from competing in this weekend's presidential runoff.