washington two democratic congressmen tuesday call trump administration demand strong labor provision renegotiation north american free trade agreement reverse chronic wage erosion mexico public hear washington tie imminent trade talk u.s. representatives sander levin bill pascrell members house ways mean committee say improve labor right mexico top nafta priority u.s wag drive depress wag mexico levin say testimony entire mexican labor system design prevent workers obtain right bargain good wag work condition levin cite wage figure hour mexican auto plant workers versus 28 unite state say nafta must modernize ensure mexican workers true right collective bargain replace current mexican system labor conciliation arbitration board negotiate early 1990s unite state canada mexico nafta lack enforceable labor provision levin pascrell say new labor standards must enforcement mechanism ensure full implementation provision new trade deal go effect pascrell also sharply criticize trump administration fail spell clear specific objectives nafta renegotiations due start aug. 16 congress american public company stakeholders make american economy completely dark come administration intend whose benefit pascrell also call major reform nafta dispute resolution mechanism trump administration officials also criticize system say bias u.s. interest hear also include testimony dozens industry group company hop talk take place wednesday international trade commission washington u.s. trade representative office take lead role negotiations expect publish detail nafta negotiate objectives around mid-july nafta hear start democratic lawmakers urge strong labor rule