Feb. 10, 2005 22:55 | Updated Feb. 10, 2005 23:07 Envoy to US: Referendum may erode American support By HERB KEINON Israel may lose ground in Washington if it carriers out a disengagement referendum that will delay implementation of the plan, Israel's ambassador to the US Danny Ayalon indicated Thursday, just two days after Foreign Minister Silvan Shalom came out full force in favor of the referendum. "In my view I don't think anything that will postpone, or interfere, with the timetable or orderly manner of carrying out disengagement would be viewed favorably in Washington," Ayalon told The Jerusalem Post....