washington president donald trump choice top u.s. trade negotiator tuesday pledge america first strategy aggressively enforce u.s. laws trade deal stop unfair import push china scrap excess factory capacity robert lighthizer u.s. trade representative nominee tell senators confirmation hear trump choose trade enforcement background expect go rigorous enforcement policy lighthizer tell senate finance committee point emphasis lighthizer say would bring many trade enforcement action justify world trade organization rule bilateral trade agreements u.s. trade remedy laws deputy ustr 1980s lighthizer 69 negotiate japanese import quotas veteran trade lawyer recent years pursue dozens anti-dumping anti-subsidy case import steel products lighthizer say would seek increase trade make free fair benefit u.s. workers farmers ranchers businesses outspoken critic china lighthizer say beijing industrial policies support vast amount uneconomic production capacity would survive without state support say particularly true steel aluminum sectors lead dump products u.s. market lighthizer tell senators would engage china multilateral forums reduce capacity say trade enforcement action may effective raise cost keep factories alive difficult maintain non-economic capacity mean enforce trade laws mean encourage countries ship products enforce trade laws lighthizer say believe china substantial currency manipulator past unclear beijing continue comment line neutral statements subject trump administration officials recently president threaten campaign declare china currency manipulator lighthizer also pledge fight strong protections intellectual property right digital trade access renegotiate north american free trade agreement canada mexico say important lose gain agricultural export countries encourage production return unite state regard canada say find solution long-running trade dispute softwood lumber would top priority trump cabinet already crowd senior trade officials include commerce secretary wilbur ross director newly create white house national trade council peter navarro lighthizer say confirm would ustr full statutory power would play lead role sort u.s. trade policy work closely agencies trump 's ustr nominee pledge tough enforcement u.s. trade laws