As the East and Gulf Coast ports strike hits day three on Thursday, there are multiple signs of supply chain stress building. Thousands of shipping containers were potentially dumped at the wrong ports as ocean carriers scrambled to find alternate options for cargo,

U.S. ports from Maine to Texas could shut down Tuesday if a union representing about 45,000 dockworkers carries through with a threatened strike. A lengthy shutdown could raise prices on goods around the country and potentially cause shortages and price increases at big and small retailers alike as the holiday shopping season — along with a tight presidential election —

The union representing thousands of dockworkers from Maine to Texas launched a strike over wages and the use of automation, shutting down major seaports.