H-1B Visa Fee hike, Oct. 4 -- A broad coalition of unions, employers and religious groups has filed a lawsuit in San Francisco, challenging President Donald Trump's unprecedented attempt to impose a $100,000 fee on new H-1B visas for highly skilled foreign workers.

The case, lodged in federal court on Friday, marks the first legal battle against Trump's proclamation announced two weeks earlier. The move is the latest in a series of aggressive steps by the US president to restrict immigration into the United States.

The plaintiffs span multiple sectors, underscoring the wide-ranging impact of the order. They include the United Auto Workers union, the American Association of University Professors, a nurse recruitment agency and several re...