UPDATED: January 3, 2019
U.S. Citizenship and Immigration Services (USCIS) fee-funded services remain unaffected by the shutdown. However, Immigration Court (EOIR) is closed except for detained cases. ICE enforcement and removal operations will continue, and ICE attorneys are working on the detained docket. Assume that check-ins are proceeding as per usual. The Department of State is still providing passport and visa services. U.S. district courts are all reacting differently in different jurisdictions. Contact the relevant court to see how the shutdown may affect your case.