A federal spending bill introduced Saturday by House Republicans could have a drastic impact on D.C.’s budget, potentially leading to about $1 billion in overnight cuts impacting everything from the city’s law enforcement to schools,

House Republicans unveiled a spending bill Saturday that would keep federal agencies funded through Sept. 30, pushing ahead with a go-it-alone strategy that seems certain to spark a major confrontation with Democrats over the contours of government spending.

The proposal would fund the government through September, and mostly maintain levels of spending passed during the last administration.