December 14, 1988 – President Reagan authorizes dialogue with the PLO, explaining that “The Palestine Liberation Organization (PLO) today issued a statement in which it accepted UN Security Council Resolutions 242 and 338, recognized Israel’s right to exist, and renounced terrorism. These have long been our conditions for a substantive dialogue. They have been met. Therefore, I have authorized the State Department to enter into substantive dialogue with PLO representatives.”
However, his Secretary of State, George Shultz, noted: ”Nothing here may be taken to imply an acceptance or recognition by the United States of an independent Palestinian state. The position of the United States is that the status of the West Bank and Gaza cannot be determined by unilateral acts of either side but only through a process of negotiations. The United States does not recognize the declaration of an independent Palestinian state.”
December 14, 1998 – President Clinton becomes the first U.S. President to visit and “address the Palestinian people in a city governed by Palestinians“ in a speech to the Palestinian National Council in Gaza City, Gaza.
June 24, 2002- President Bush announces his vision of “two states, living side by side in peace and security,” saying that “when the Palestinian people have new leaders, new institutions and new security arrangements with their neighbors, the United States of America will support the creation of a Palestinian state whose borders and certain aspects of its sovereignty will be provisional until resolved as part of a final settlement in the Middle East.”

