WASHINGTON, Feb 7 (Reuters) - Key Bush administration officials are expected to visit Israel this month to discuss Israeli Prime Minister's plan to "disengage" from the Palestinians, The Washington Post reported on Saturday. The trip would lay the groundwork for a trip to Washington by Sharon either later in February or in March, the newspaper said. The American delegation may include deputy National Security Adviser Stephen Hadley and the National Security Council's senior director Elliott Abrams as well as Assistant Secretary of State William Burns, the newspaper said, quoting U.S. and Israeli officials. Administration officials were not immediately available to...