SANTA CLARA COUNTY, CA — The city of San Jose sued President Donald Trump in federal court today to challenge his cancellation of deportation protections for young immigrants, alleging that the city itself has suffered "concrete and specific injury" through harm to some of its workers.

San Jose is the first city in the nation to sue over Trump's Sept. 5 decision to end the Deferred Action for Childhood Arrivals program, Mayor Sam Liccardo said at a news conference. Other lawsuits have been filed by California and three other states and by the University of California in federal court in San Francisco in the past week. Fifteen other states and the District of Columbia sued in

federal court in New York.

San Jose's lawsuit, filed in U.S. District Court in San Jose, claims Trump's action hurts the city because it will lose valuable employees who are DACA recipients. The city has also already had to deal with a loss of

productivity and morale by workers "who face a future of uncertainty and fear," the lawsuit claims. "Those DACA recipients include public servants in our own City Hall, providing public safety and other critical services to our community," Liccardo said.

"The decision is imperiling the ability of these city employees to lawfully continue to serve our community in critical functions. Our city residents directly suffer because they lose critical services at a time where

we are already stretched thin with hundreds of vacancies at City Hall," the mayor said. San Jose has filed a lawsuit v. Donald Trump for rescinding DACA. We must protect our DREAMers, and the American Dream. #WeveGotYourBack pic.twitter.com/gr7Ztxzq5v

— Sam Liccardo (@sliccardo) September 14, 2017 The DACA program, which now covers 800,000 people, including 223,000 in California, was established through an executive order by President Barack Obama in 2012.

It enabled undocumented immigrants who arrived in the U.S. as children to apply for deferment of deportation and work authorization, renewable every two years. The DACA recipients are sometimes known as Dreamers.

Under the phased termination announced by the Trump administration, no new applications will be accepted.

Current recipients can retain their deferred action period and work authorization documents until they reach their two-year expiration date. Those whose documents expire before March 6 can apply for a two-year renewal.