CLINTON TO SEND CHINA TRADE BILL TO CONGRESS SOON
Pres Clinton will send Congress within days bill to permanently normalize trade relations with Beijing, amid signs that support for important trade accord is slipping away; accelerated timetable answers call from pro-trade members of Congress who have urged administration to push for early vote because of mounting evidence that measure will be even tougher sell as election-year politics intensify; opposition of organized labor, which has made defeating bill top priority, noted; even pro-trade Republican leaders report trouble rallying support among members; China's renewed threats to use force against Taiwan and administration's own report on China's deteriorating human rights situation have given fresh impetus to right-wing opponents of measure, as well as to those on left (M)

