Costco's CEO said a port shutdown from a strike "could be disruptive," but the company has "taken as many preemptive measures as we could."

Tens of thousands of longshore workers are ready to strike early Tuesday morning, impacting grocery deliveries for retailers like Costco and Walmart. The International Longshoremen’s Association and the United States Maritime Alliance remain at a stalemate in contract negotiations,

Costco and other retailers scramble to prepare ahead of Tuesday's threat to strike by longshore workers at ports along the East Coast and Gulf coast.

U.S. retailer Costco Wholesale is taking a wide variety of steps to prepare for possible strikes next week at U.S. ports on the East Coast and Gulf of Mexico, the company's chief executive said on Thursday.

Longshore workers at ports along the East Coast and Gulf coast are threatening to strike by Tuesday. The impacts could be devastating