The International Longshoremen’s Association says they’ll walk off the job at midnight if they can’t reach a deal on their contracts with the United States Maritime Alliance.

The union representing U.S. dockworkers has signaled that 45,000 of its members will walk off the job at midnight, kicking off a strike likely to shut down ports across the East and Gulf coasts. The coming work stoppage threatens to significantly snarl the nation's supply chain,

A group of dockworkers are likely to strike this week in ports from Maine to Texas. Here’s what we know about ports on the Mississippi Coast.