The ACLU, AFL-CIO, UNITE HERE, U.S. Chamber of Commerce and trade associations representing small business owners rarely find themselves all together on the same side of an issue.

But that’s exactly the scenario that developed over the past few months in the Federal District Court for the Northern District of California. By leveraging its collective might, the business/labor/civil liberties coalition hopes to overturn the powerful Department of Homeland Security’s (DHS) latest attempt to pressure employers to fire undocumented workers.