washington sweep tax code change aim keep u.s. company shift profit offshore avoid tax affect batter economy puerto rico senior white house official say wednesday puerto rico governor ricardo rossello say provision new tax bill pass congress could prompt drug medical device manufacturers leave island territory consider foreign jurisdiction tax purpose personally think go hurt puerto rico white house official tell reporters speak condition anonymity tax base erosion provision bill provide exemptions cost goods u.s. company buy offshore mean supply make puerto rico would affect white house official say manufacture plant economic lifeline 3.4 million americans territory economy never recover congress 2006 end different set longstanding business tax break puerto rico 120 billion combine bond pension debt near-insolvent public health systems file largest-ever u.s. government bankruptcy year three months ago hurricane maria slam island tear home power grid bring economy halt congress consider 81 billion disaster aid bill aim puerto rico part must-pass government fund bill white house say tax bill hurt puerto rico