U.S. ports from Maine to Texas could shut down if a union representing 45,000 dockworkers carries through with a threatened strike early Tuesday
Based on prior port strikes, ocean carriers normally profit from soaring freight rates based on demand for other ports as well as detention and demurrage fees on containers stranded during a ports shutdown.
Presidents have the authority to block strikes that could pose national security problems, but the White House is adamant that Biden will not intervene.