Under the United States’ federal system, set up by the Constitution, states and the federal government are given their own spheres of influence – and an expectation of collaboration. The friction in Minnesota highlights how, at a time of deep political division, the risks of intensifying confrontations are heightened, analysts say. And the divide is not just among political leaders. In Minneapolis and across the U.S. this weekend, thousands of protesters gathered to honor Ms. Good and decry the administration’s aggressive immigration enforcement tactics – echoing protests in 2020 after George Floyd was killed in Minneapolis by a local police officer.