Dearborn, Michigan, is no longer a territory under control of the US Federal or Michigan state governments. It is now a foreign enclave, essentially a no-go zone for most Americans, and once the preponderance of the Islamic population grows large enough, it will become a no-go zone for all non-Muslims.
I have heard they might even have secret sharia courts in Dearborn that quietly perform beheadings and otherwise enforce a strict sharia there. It’s hard to know because “outsiders” don’t dare enter that town. But people near the border can apparently hear the many calls to prayer on a regular basis. Churches are said to be 100% gone — chased out. There are several mosques.