Lawmakers and the White House are offering no signs of compromise in their battle over oversight of federal immigration officers. That impasse has led to a pause in funding for the Department of Homeland Security. A partial government shutdown began Saturday after congressional Democrats and President Donald Trump’s team failed to reach a deal on legislation to fund the department through September. Democrats are demanding changes to how immigration operations are conducted after the fatal shootings of two U.S. citizens by federal officers in Minneapolis last month. Congress is on recess until Feb. 23, and both sides appear dug into their positions.