Foreign high-skilled workers aren’t supposed to take jobs from Americans, but they sometimes do. When companies apply to bring in a foreign worker on an H-1B visa, they are required by the U.S. Labor Department to ensure the new arrivals will not adversely affect similarly employed U.S. workers.

But American workers claim in lawsuits that they have been supplanted by H-1B visa holders doing work for companies like Molina Healthcare in California and Harley-Davidson in Wisconsin.