A flurry of diplomatic activity over the next two weeks gives President Obama an opportunity to lead. The president will meet with the King of Jordan on Tuesday and with Israeli Prime Minister Benjamin Netanyahu on Friday. The White House is also planning a major address on the Middle East for the near future. This is the right moment for the president to grab the bull by the horns and take dramatic action. He should use this moment to present his vision for Israeli-Palestinian peace and to lay out how he plans to turn this vision into the basis for an agreement.