PHILADELPHIA (AP) — A strike by dockworkers at 36 ports from Maine to Texas, the first in decades, could snarl supply chains and lead to shortages and higher prices if it stretches on for more than a few weeks. Workers began walking picket lines early Tuesday in a strike over wages and automation even though progress had been reported in contract talks. The contract between the ports and about 45,000 members of the International Longshoremen’s Association expired at midnight.

The strike comes just weeks before the presidential election and could become a factor if there are shortages. Workers at the Port of Philadelphia walked in a circle outside the port and chanted “No work without a fair contract.” The union, striking for the first time since 1977, had message boards on the side of a truck reading: “Automation Hurts Families: ILA Stands For Job Protection.

” Local ILA president Boise Butler said workers want a fair contract that doesn’t allow automation of their jobs. Shipping companies made billions during the pandemic by charging high prices, he said. “Now we want them to pay back.

They’re going to pay back,” Butler said. He said the union will strike for as long as it needs to get a fair deal, and it has leverage over the companies. “This is not something that you start and you stop,” he said.

“We're not weak,” he added, pointing to the union's importance to the nation's economy. At Port Houston, at least 50 workers started picketing around mi.