U.S. House Speaker Newt Gingrich's trip Saturday to Israel is causing controversy even before he arrives.

At the request of aides to President Clinton on Friday, Gingrich, R-Ga., canceled the most sensitive part of his itinerary. He scratched a visit to the vacant lot that would be used for a new U.S. Embassy, if it were to be moved from Tel Aviv to Jerusalem.Most countries have decided to keep their embassies in Tel Aviv until Israel and the Palestinians can settle their disputed claims to Jerusalem. But Congress has called for the U.S. Embassy to be moved in a show of support for Israel.