Seattle Mayor Bruce Harrell signed two executive orders on Wednesday aimed at shielding the city from what he called “unlawful actions” and “federal overreach” by the Trump administration, as concerns mount over the potential deployment of federalized National Guard troops and immigration enforcement raids carried out by masked, unidentified agents.

In what appears to be the first major challenge to the new $100,000 fee required for H-1B visa applications, a coalition of health care providers, religious groups, university professors and others filed a federal lawsuit Friday to stop the plan, saying it has “thrown employers, workers and federal agencies into chaos.”