Dockworkers at ports from Maine to Texas began walking picket lines early Tuesday after their contract expired, launching the first strike by the International Longshoremen’s Association since 1977.

The AP report says about 45,000 members of the union were affected across 36 ports, making the action one of the broadest U.S. port labor stoppages in decades. The central dispute involved wages and automation, with workers rejecting what they saw as inadequate pay gains and too much room for machines to replace labor.

The timing of the strike mattered because the contract expired at midnight and no deal was reached even after progress was reported in talks on Monday. By the time workers appeared at terminals in Philadelphia, Houston and elsewhere, the union had already shifted from bargaining to picket lines.

The report shows both sides had moved on compensation. The union had initially sought a 77% pay increase over six years, while the port alliance had increased its offer to 50% over the same period. But automation remained a central sticking point. The union wanted a complete ban, while the alliance said it wanted to preserve limits from the old contract.

The walkout immediately raised concerns about supply chains. AP said the strike would likely have an almost immediate effect on perishable imports such as bananas, and that if it lasted more than a few weeks it could reignite inflation and create shortages of goods. That makes the strike not just a labor dispute but a national logistics risk.

The article also highlights how the action touched both economic and political nerves. Union leaders argued that shipping companies had earned large profits during the pandemic and should now share the gains with workers. The port side said it was still trying to move talks forward. Neither framing resolved the dispute, which remained open as the strike began.

The evidence packet does not say how long the strike lasted, whether federal mediators were brought in, or whether cargo backups were already forming at specific terminals. It does, however, support the conclusion that the work stoppage was large, immediate and potentially disruptive to consumer prices and imported goods.

In practical terms, a strike of this scale at major ports can quickly affect retailers, food distributors and manufacturers. The AP report does not quantify those downstream effects yet, but the warning is clear enough: the walkout could spread beyond the docks very quickly if bargaining remained frozen.