disruptions at auto plants in canada and several states. the supply chain breakdown has flooded paul russo s detroit-area warehouse. these are for auto makers. that is correct. reporter: who can t make cars without it. that s correct. without this material, you re not making a car. he has five million tons of steel and aluminum that should have been delivered across the closed ambassador bridge to canadian auto pants. how frustrating is this for you? i m throwing my hands up saying guys i can t do nothing. i can t control the border. reporter: and it s costing you money. it s costing us big dollars. reporter: for auto makers it s costing $700 million and counting. some are chartering cargo planes, and major facilities could be shut down if the blockade drags on. i know shutdowns are jussse s mounting on the canadian government, who today declared a state of emergency over the blockade. this unlawfull activity has to end, and it will end.