Truckers’ protests over a labor law block access to Oakland’s port.

For days, a convoy of truckers has blocked the roads that serve the Port of Oakland, crippling a major West Coast cargo hub already hampered by global supply chain disruptions.

The protest is meant to send a message to Gov. Gavin Newsom: Keep the drivers clear of a California labor law that they say threatens their livelihood.

The truckers, primarily independent owners and operators, are demonstrating in opposition to Assembly Bill 5, a law passed in 2019 that requires gig workers in several industries to be classified as employees with benefits, including minimum wage and overtime pay.

Along with a coalition of trade groups, the truckers want Mr. Newsom to issue an executive order putting off the application of the 2019 law to their work and to bring labor and industry to the table to negotiate a path forward.