Union leaders in South Florida used Labor Day to warn that mass deportations, work visa restrictions and federal funding cuts are threatening industries ranging from construction and trucking to healthcare, education and mail delivery.

Immigration and labor shortages

South Florida AFL-CIO president Jeffrey Mitchell said immigration and deportation crackdowns are slowing construction projects in Florida because workers fear being detained.

"They're afraid to show up at worksites and be harassed by ICE," Mitchell said.

The National Association of Home Builders has found that 38% of Florida's construction workers are foreign-born.

Mitchell also pointed to transportation. He said Secretary of State Marco Rubio 's pause on new work visas for truck drivers comes as the American

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