based Al-Watan, commenting on the peace process in the Middle East, said George Mitchell, the US envoy, has left the Middle East region without attaining any success, adding that this development comes at a time when US President Obama has indirectly confessed that his administration is incapable of realizing peace. "Undoubtedly the Middle East issue is the most important challenge facing Obama during his second year of presidency," said the paper. The speech delivered by Obama in Cairo last June has earned him a good reputation in the Arab world and reminded the Arabs and Muslims about the late President Dwight Eisenhower who had unwaveringly announced his support to Egypt during the three-nations' (Britain, France and Israel) aggression against it. Obama , at his speech in Cairo made clear his policy as regards dealing with the Muslim world notably the peace process in the Middle East, but several observers are pessimistic about the capability of the US president of attaining any remarkable success in this respect.