west palm beach fla. u.s. senator bernie sanders turn pressure president-elect donald trump saturday pledge try stop indiana air conditioner manufacturer move 1,400 job mexico sanders challenge hillary clinton democratic nomination trump seize announcement early year unite technologies corp carrier division would shift production mexico example trade deal hurt u.s. workers sanders saturday warn good enough save job say trump use leverage unite technologies defense contract export-import bank finance tax break call mr. trump make clear ceo unite technologies firm want receive another defense contract taxpayers country must move plant mexico senator vermont say statement representative carrier decline comment sanders statement trump take office jan. 20 say thursday work hard even thanksgiving get plant stay say make progress issue carrier corp. confirm discussions incoming administration neither side provide detail trump threaten slap tax company air conditioners make mexico ship back unite state spokesman immediately available comment sanders statement saturday sanders say would soon introduce legislation would prevent company outsource receive federal contract grant loan force company outsource job pay penalty tax pay back tax break sanders trump use defense contract leverage carrier job