President Barack Obama said on Tuesday that he has not given up hope for a two-state solution to the Israel-Palestinian conflict but said tensions in the region and "serious questions about overall commitment" have made progress difficult."It's no secret that we now have a very difficult path forward. As a result, the United States is taking a hard look at our approach to the conflict," Obama said in an interview with Asharq al-Awsat, an Arabic international newspaper based in London."We look to the new Israeli government and the Palestinians to demonstrate - through policies and actions - a genuine commitment to a two-state solution," Obama said.